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Finding the Fourth Proportional to 61,513.90, 84,889.18 and 34,656.39

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Solution

The fourth proportional to 61,513.90, 84,889.18 and 34,656.39 is: 47,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,513.90 : 84,889.18 = 34,656.39 : x
  2. Step 2: Convert to fraction form
    61,513.90/84,889.18 = 34,656.39/x
  3. Step 3: Cross multiply
    61,513.90x = 84,889.18 × 34,656.39
  4. Step 4: Simplify right side
    61,513.90x = 2,941,952,572.18
  5. Step 5: Solve for x
    x = 2,941,952,572.18/61,513.90
  6. Step 6: Final answer
    x = 47,825.82

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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.