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Finding the Fourth Proportional to 71,411.87, 98,480.40 and 42,726.94

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Solution

The fourth proportional to 71,411.87, 98,480.40 and 42,726.94 is: 58,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,411.87 : 98,480.40 = 42,726.94 : x
  2. Step 2: Convert to fraction form
    71,411.87/98,480.40 = 42,726.94/x
  3. Step 3: Cross multiply
    71,411.87x = 98,480.40 × 42,726.94
  4. Step 4: Simplify right side
    71,411.87x = 4,207,765,649.57
  5. Step 5: Solve for x
    x = 4,207,765,649.57/71,411.87
  6. Step 6: Final answer
    x = 58,922.50

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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.