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Finding the Fourth Proportional to 48,543.48, 72,815.24 and 13,483.12

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Solution

The fourth proportional to 48,543.48, 72,815.24 and 13,483.12 is: 20,224.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,543.48 : 72,815.24 = 13,483.12 : x
  2. Step 2: Convert to fraction form
    48,543.48/72,815.24 = 13,483.12/x
  3. Step 3: Cross multiply
    48,543.48x = 72,815.24 × 13,483.12
  4. Step 4: Simplify right side
    48,543.48x = 981,776,618.75
  5. Step 5: Solve for x
    x = 981,776,618.75/48,543.48
  6. Step 6: Final answer
    x = 20,224.69

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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.