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Finding the Fourth Proportional to 32,691.81, 45,114.05 and 18,351.98

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Solution

The fourth proportional to 32,691.81, 45,114.05 and 18,351.98 is: 25,325.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,691.81 : 45,114.05 = 18,351.98 : x
  2. Step 2: Convert to fraction form
    32,691.81/45,114.05 = 18,351.98/x
  3. Step 3: Cross multiply
    32,691.81x = 45,114.05 × 18,351.98
  4. Step 4: Simplify right side
    32,691.81x = 827,931,963.63
  5. Step 5: Solve for x
    x = 827,931,963.63/32,691.81
  6. Step 6: Final answer
    x = 25,325.36

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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.