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Finding the Fourth Proportional to 71,089.44, 98,103.47 and 38,824.50

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Solution

The fourth proportional to 71,089.44, 98,103.47 and 38,824.50 is: 53,577.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089.44 : 98,103.47 = 38,824.50 : x
  2. Step 2: Convert to fraction form
    71,089.44/98,103.47 = 38,824.50/x
  3. Step 3: Cross multiply
    71,089.44x = 98,103.47 × 38,824.50
  4. Step 4: Simplify right side
    71,089.44x = 3,808,817,976.89
  5. Step 5: Solve for x
    x = 3,808,817,976.89/71,089.44
  6. Step 6: Final answer
    x = 53,577.83

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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.