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Finding the Fourth Proportional to 61,271.52, 84,553.08 and 34,412.72

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Solution

The fourth proportional to 61,271.52, 84,553.08 and 34,412.72 is: 47,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,271.52 : 84,553.08 = 34,412.72 : x
  2. Step 2: Convert to fraction form
    61,271.52/84,553.08 = 34,412.72/x
  3. Step 3: Cross multiply
    61,271.52x = 84,553.08 × 34,412.72
  4. Step 4: Simplify right side
    61,271.52x = 2,909,701,467.18
  5. Step 5: Solve for x
    x = 2,909,701,467.18/61,271.52
  6. Step 6: Final answer
    x = 47,488.65

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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.