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Finding the Fourth Proportional to 71,193.74, 98,247.53 and 38,930.45

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Solution

The fourth proportional to 71,193.74, 98,247.53 and 38,930.45 is: 53,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,193.74 : 98,247.53 = 38,930.45 : x
  2. Step 2: Convert to fraction form
    71,193.74/98,247.53 = 38,930.45/x
  3. Step 3: Cross multiply
    71,193.74x = 98,247.53 × 38,930.45
  4. Step 4: Simplify right side
    71,193.74x = 3,824,820,897.23
  5. Step 5: Solve for x
    x = 3,824,820,897.23/71,193.74
  6. Step 6: Final answer
    x = 53,724.12

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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.