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Finding the Fourth Proportional to 71,327.92, 98,404.45 and 45,830.47

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Solution

The fourth proportional to 71,327.92, 98,404.45 and 45,830.47 is: 63,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,327.92 : 98,404.45 = 45,830.47 : x
  2. Step 2: Convert to fraction form
    71,327.92/98,404.45 = 45,830.47/x
  3. Step 3: Cross multiply
    71,327.92x = 98,404.45 × 45,830.47
  4. Step 4: Simplify right side
    71,327.92x = 4,509,922,193.59
  5. Step 5: Solve for x
    x = 4,509,922,193.59/71,327.92
  6. Step 6: Final answer
    x = 63,228.01

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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.