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Finding the Fourth Proportional to 71,050.92, 98,050.95 and 39,219.14

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Solution

The fourth proportional to 71,050.92, 98,050.95 and 39,219.14 is: 54,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,050.92 : 98,050.95 = 39,219.14 : x
  2. Step 2: Convert to fraction form
    71,050.92/98,050.95 = 39,219.14/x
  3. Step 3: Cross multiply
    71,050.92x = 98,050.95 × 39,219.14
  4. Step 4: Simplify right side
    71,050.92x = 3,845,473,444.93
  5. Step 5: Solve for x
    x = 3,845,473,444.93/71,050.92
  6. Step 6: Final answer
    x = 54,122.78

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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.