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Finding the Fourth Proportional to 69,570.76, 96,007.68 and 39,355.43

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Solution

The fourth proportional to 69,570.76, 96,007.68 and 39,355.43 is: 54,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,570.76 : 96,007.68 = 39,355.43 : x
  2. Step 2: Convert to fraction form
    69,570.76/96,007.68 = 39,355.43/x
  3. Step 3: Cross multiply
    69,570.76x = 96,007.68 × 39,355.43
  4. Step 4: Simplify right side
    69,570.76x = 3,778,423,332.93
  5. Step 5: Solve for x
    x = 3,778,423,332.93/69,570.76
  6. Step 6: Final answer
    x = 54,310.51

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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.