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Finding the Fourth Proportional to 24,306.65, 33,543.18 and 13,128.65

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Solution

The fourth proportional to 24,306.65, 33,543.18 and 13,128.65 is: 18,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,306.65 : 33,543.18 = 13,128.65 : x
  2. Step 2: Convert to fraction form
    24,306.65/33,543.18 = 13,128.65/x
  3. Step 3: Cross multiply
    24,306.65x = 33,543.18 × 13,128.65
  4. Step 4: Simplify right side
    24,306.65x = 440,376,670.11
  5. Step 5: Solve for x
    x = 440,376,670.11/24,306.65
  6. Step 6: Final answer
    x = 18,117.54

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