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Finding the Fourth Proportional to 32,671.29, 45,085.79 and 18,331.39

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Solution

The fourth proportional to 32,671.29, 45,085.79 and 18,331.39 is: 25,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,671.29 : 45,085.79 = 18,331.39 : x
  2. Step 2: Convert to fraction form
    32,671.29/45,085.79 = 18,331.39/x
  3. Step 3: Cross multiply
    32,671.29x = 45,085.79 × 18,331.39
  4. Step 4: Simplify right side
    32,671.29x = 826,484,882.86
  5. Step 5: Solve for x
    x = 826,484,882.86/32,671.29
  6. Step 6: Final answer
    x = 25,296.98

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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.