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Finding the Fourth Proportional to 47,251.71, 70,841.93 and 28,527.30

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Solution

The fourth proportional to 47,251.71, 70,841.93 and 28,527.30 is: 42,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,251.71 : 70,841.93 = 28,527.30 : x
  2. Step 2: Convert to fraction form
    47,251.71/70,841.93 = 28,527.30/x
  3. Step 3: Cross multiply
    47,251.71x = 70,841.93 × 28,527.30
  4. Step 4: Simplify right side
    47,251.71x = 2,020,929,061.01
  5. Step 5: Solve for x
    x = 2,020,929,061.01/47,251.71
  6. Step 6: Final answer
    x = 42,769.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.