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Finding the Fourth Proportional to 32,691.72, 45,117.90 and 19,267.30

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Solution

The fourth proportional to 32,691.72, 45,117.90 and 19,267.30 is: 26,590.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,691.72 : 45,117.90 = 19,267.30 : x
  2. Step 2: Convert to fraction form
    32,691.72/45,117.90 = 19,267.30/x
  3. Step 3: Cross multiply
    32,691.72x = 45,117.90 × 19,267.30
  4. Step 4: Simplify right side
    32,691.72x = 869,299,987.84
  5. Step 5: Solve for x
    x = 869,299,987.84/32,691.72
  6. Step 6: Final answer
    x = 26,590.83

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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.