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Finding the Fourth Proportional to 70,242.69, 96,934.95 and 38,414.55

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Solution

The fourth proportional to 70,242.69, 96,934.95 and 38,414.55 is: 53,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,242.69 : 96,934.95 = 38,414.55 : x
  2. Step 2: Convert to fraction form
    70,242.69/96,934.95 = 38,414.55/x
  3. Step 3: Cross multiply
    70,242.69x = 96,934.95 × 38,414.55
  4. Step 4: Simplify right side
    70,242.69x = 3,723,712,483.52
  5. Step 5: Solve for x
    x = 3,723,712,483.52/70,242.69
  6. Step 6: Final answer
    x = 53,012.10

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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.