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Finding the Fourth Proportional to 7,685.68, 10,606.10 and 4,328.50

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Solution

The fourth proportional to 7,685.68, 10,606.10 and 4,328.50 is: 5,973.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.68 : 10,606.10 = 4,328.50 : x
  2. Step 2: Convert to fraction form
    7,685.68/10,606.10 = 4,328.50/x
  3. Step 3: Cross multiply
    7,685.68x = 10,606.10 × 4,328.50
  4. Step 4: Simplify right side
    7,685.68x = 45,908,503.85
  5. Step 5: Solve for x
    x = 45,908,503.85/7,685.68
  6. Step 6: Final answer
    x = 5,973.25

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Half scale
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Double scale
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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.