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Finding the Fourth Proportional to 48,483.72, 72,712.62 and 13,425.30

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Solution

The fourth proportional to 48,483.72, 72,712.62 and 13,425.30 is: 20,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,483.72 : 72,712.62 = 13,425.30 : x
  2. Step 2: Convert to fraction form
    48,483.72/72,712.62 = 13,425.30/x
  3. Step 3: Cross multiply
    48,483.72x = 72,712.62 × 13,425.30
  4. Step 4: Simplify right side
    48,483.72x = 976,188,737.29
  5. Step 5: Solve for x
    x = 976,188,737.29/48,483.72
  6. Step 6: Final answer
    x = 20,134.36

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1.5x scale

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.