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Finding the Fourth Proportional to 32,666.15, 45,079.79 and 18,329.15

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Solution

The fourth proportional to 32,666.15, 45,079.79 and 18,329.15 is: 25,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,666.15 : 45,079.79 = 18,329.15 : x
  2. Step 2: Convert to fraction form
    32,666.15/45,079.79 = 18,329.15/x
  3. Step 3: Cross multiply
    32,666.15x = 45,079.79 × 18,329.15
  4. Step 4: Simplify right side
    32,666.15x = 826,274,253.93
  5. Step 5: Solve for x
    x = 826,274,253.93/32,666.15
  6. Step 6: Final answer
    x = 25,294.51

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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.