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Finding the Fourth Proportional to 8,711.12, 12,014.76 and 6,057.20

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Solution

The fourth proportional to 8,711.12, 12,014.76 and 6,057.20 is: 8,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.12 : 12,014.76 = 6,057.20 : x
  2. Step 2: Convert to fraction form
    8,711.12/12,014.76 = 6,057.20/x
  3. Step 3: Cross multiply
    8,711.12x = 12,014.76 × 6,057.20
  4. Step 4: Simplify right side
    8,711.12x = 72,775,804.27
  5. Step 5: Solve for x
    x = 72,775,804.27/8,711.12
  6. Step 6: Final answer
    x = 8,354.36

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,712.12, 12,016.14 and 6,058.20
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.