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Finding the Fourth Proportional to 48,483.54, 72,769.14 and 20,424.42

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Solution

The fourth proportional to 48,483.54, 72,769.14 and 20,424.42 is: 30,655.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,483.54 : 72,769.14 = 20,424.42 : x
  2. Step 2: Convert to fraction form
    48,483.54/72,769.14 = 20,424.42/x
  3. Step 3: Cross multiply
    48,483.54x = 72,769.14 × 20,424.42
  4. Step 4: Simplify right side
    48,483.54x = 1,486,267,478.40
  5. Step 5: Solve for x
    x = 1,486,267,478.40/48,483.54
  6. Step 6: Final answer
    x = 30,655.09

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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.