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Finding the Fourth Proportional to 29,691.90, 40,975.44 and 16,263.72

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Solution

The fourth proportional to 29,691.90, 40,975.44 and 16,263.72 is: 22,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,691.90 : 40,975.44 = 16,263.72 : x
  2. Step 2: Convert to fraction form
    29,691.90/40,975.44 = 16,263.72/x
  3. Step 3: Cross multiply
    29,691.90x = 40,975.44 × 16,263.72
  4. Step 4: Simplify right side
    29,691.90x = 666,413,083.04
  5. Step 5: Solve for x
    x = 666,413,083.04/29,691.90
  6. Step 6: Final answer
    x = 22,444.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.