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Finding the Fourth Proportional to 71,618.10, 107,427.15 and 36,626.10

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Solution

The fourth proportional to 71,618.10, 107,427.15 and 36,626.10 is: 54,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,618.10 : 107,427.15 = 36,626.10 : x
  2. Step 2: Convert to fraction form
    71,618.10/107,427.15 = 36,626.10/x
  3. Step 3: Cross multiply
    71,618.10x = 107,427.15 × 36,626.10
  4. Step 4: Simplify right side
    71,618.10x = 3,934,637,538.62
  5. Step 5: Solve for x
    x = 3,934,637,538.62/71,618.10
  6. Step 6: Final answer
    x = 54,939.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.