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Finding the Fourth Proportional to 48,643.31, 72,962.31 and 14,909.28

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Solution

The fourth proportional to 48,643.31, 72,962.31 and 14,909.28 is: 22,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,643.31 : 72,962.31 = 14,909.28 : x
  2. Step 2: Convert to fraction form
    48,643.31/72,962.31 = 14,909.28/x
  3. Step 3: Cross multiply
    48,643.31x = 72,962.31 × 14,909.28
  4. Step 4: Simplify right side
    48,643.31x = 1,087,815,509.24
  5. Step 5: Solve for x
    x = 1,087,815,509.24/48,643.31
  6. Step 6: Final answer
    x = 22,363.11

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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.