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Finding the Fourth Proportional to 29,356.33, 44,023.88 and 12,490.47

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Solution

The fourth proportional to 29,356.33, 44,023.88 and 12,490.47 is: 18,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,356.33 : 44,023.88 = 12,490.47 : x
  2. Step 2: Convert to fraction form
    29,356.33/44,023.88 = 12,490.47/x
  3. Step 3: Cross multiply
    29,356.33x = 44,023.88 × 12,490.47
  4. Step 4: Simplify right side
    29,356.33x = 549,878,669.85
  5. Step 5: Solve for x
    x = 549,878,669.85/29,356.33
  6. Step 6: Final answer
    x = 18,731.18

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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.