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Finding the Fourth Proportional to 61,034.53, 91,551.12 and 21,582.42

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Solution

The fourth proportional to 61,034.53, 91,551.12 and 21,582.42 is: 32,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,034.53 : 91,551.12 = 21,582.42 : x
  2. Step 2: Convert to fraction form
    61,034.53/91,551.12 = 21,582.42/x
  3. Step 3: Cross multiply
    61,034.53x = 91,551.12 × 21,582.42
  4. Step 4: Simplify right side
    61,034.53x = 1,975,894,642.38
  5. Step 5: Solve for x
    x = 1,975,894,642.38/61,034.53
  6. Step 6: Final answer
    x = 32,373.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.