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Finding the Fourth Proportional to 48,257.70, 72,352.80 and 28,526.10

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Solution

The fourth proportional to 48,257.70, 72,352.80 and 28,526.10 is: 42,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,257.70 : 72,352.80 = 28,526.10 : x
  2. Step 2: Convert to fraction form
    48,257.70/72,352.80 = 28,526.10/x
  3. Step 3: Cross multiply
    48,257.70x = 72,352.80 × 28,526.10
  4. Step 4: Simplify right side
    48,257.70x = 2,063,943,208.08
  5. Step 5: Solve for x
    x = 2,063,943,208.08/48,257.70
  6. Step 6: Final answer
    x = 42,769.20

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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.