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Finding the Fourth Proportional to 69,830.70, 96,340.51 and 42,617.13

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Solution

The fourth proportional to 69,830.70, 96,340.51 and 42,617.13 is: 58,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,830.70 : 96,340.51 = 42,617.13 : x
  2. Step 2: Convert to fraction form
    69,830.70/96,340.51 = 42,617.13/x
  3. Step 3: Cross multiply
    69,830.70x = 96,340.51 × 42,617.13
  4. Step 4: Simplify right side
    69,830.70x = 4,105,755,491.21
  5. Step 5: Solve for x
    x = 4,105,755,491.21/69,830.70
  6. Step 6: Final answer
    x = 58,795.85

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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.