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Finding the Fourth Proportional to 71,570.10, 107,355.15 and 36,578.10

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Solution

The fourth proportional to 71,570.10, 107,355.15 and 36,578.10 is: 54,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,570.10 : 107,355.15 = 36,578.10 : x
  2. Step 2: Convert to fraction form
    71,570.10/107,355.15 = 36,578.10/x
  3. Step 3: Cross multiply
    71,570.10x = 107,355.15 × 36,578.10
  4. Step 4: Simplify right side
    71,570.10x = 3,926,847,412.22
  5. Step 5: Solve for x
    x = 3,926,847,412.22/71,570.10
  6. Step 6: Final answer
    x = 54,867.15

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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.