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Finding the Fourth Proportional to 70,700.09, 97,565.24 and 38,868.71

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Solution

The fourth proportional to 70,700.09, 97,565.24 and 38,868.71 is: 53,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,700.09 : 97,565.24 = 38,868.71 : x
  2. Step 2: Convert to fraction form
    70,700.09/97,565.24 = 38,868.71/x
  3. Step 3: Cross multiply
    70,700.09x = 97,565.24 × 38,868.71
  4. Step 4: Simplify right side
    70,700.09x = 3,792,234,628.99
  5. Step 5: Solve for x
    x = 3,792,234,628.99/70,700.09
  6. Step 6: Final answer
    x = 53,638.33

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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.