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Finding the Fourth Proportional to 9,210.94, 12,711.11 and 5,019.19

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Solution

The fourth proportional to 9,210.94, 12,711.11 and 5,019.19 is: 6,926.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.94 : 12,711.11 = 5,019.19 : x
  2. Step 2: Convert to fraction form
    9,210.94/12,711.11 = 5,019.19/x
  3. Step 3: Cross multiply
    9,210.94x = 12,711.11 × 5,019.19
  4. Step 4: Simplify right side
    9,210.94x = 63,799,419.33
  5. Step 5: Solve for x
    x = 63,799,419.33/9,210.94
  6. Step 6: Final answer
    x = 6,926.48

Related Problems

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Half scale
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Double scale
Find fourth proportional to 9,211.94, 12,712.49 and 5,020.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.