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Finding the Fourth Proportional to 29,633.76, 44,463.06 and 12,985.20

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Solution

The fourth proportional to 29,633.76, 44,463.06 and 12,985.20 is: 19,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,633.76 : 44,463.06 = 12,985.20 : x
  2. Step 2: Convert to fraction form
    29,633.76/44,463.06 = 12,985.20/x
  3. Step 3: Cross multiply
    29,633.76x = 44,463.06 × 12,985.20
  4. Step 4: Simplify right side
    29,633.76x = 577,361,726.71
  5. Step 5: Solve for x
    x = 577,361,726.71/29,633.76
  6. Step 6: Final answer
    x = 19,483.24

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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.