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Finding the Fourth Proportional to 48,352.80, 72,529.20 and 13,292.40

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Solution

The fourth proportional to 48,352.80, 72,529.20 and 13,292.40 is: 19,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,352.80 : 72,529.20 = 13,292.40 : x
  2. Step 2: Convert to fraction form
    48,352.80/72,529.20 = 13,292.40/x
  3. Step 3: Cross multiply
    48,352.80x = 72,529.20 × 13,292.40
  4. Step 4: Simplify right side
    48,352.80x = 964,087,138.08
  5. Step 5: Solve for x
    x = 964,087,138.08/48,352.80
  6. Step 6: Final answer
    x = 19,938.60

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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.