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Finding the Fourth Proportional to 48,483, 72,724.50 and 15,651

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Solution

The fourth proportional to 48,483, 72,724.50 and 15,651 is: 23,476.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,483 : 72,724.50 = 15,651 : x
  2. Step 2: Convert to fraction form
    48,483/72,724.50 = 15,651/x
  3. Step 3: Cross multiply
    48,483x = 72,724.50 × 15,651
  4. Step 4: Simplify right side
    48,483x = 1,138,211,149.50
  5. Step 5: Solve for x
    x = 1,138,211,149.50/48,483
  6. Step 6: Final answer
    x = 23,476.50

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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.