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Finding the Fourth Proportional to 61,258.86, 84,536.91 and 34,402.50

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Solution

The fourth proportional to 61,258.86, 84,536.91 and 34,402.50 is: 47,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,258.86 : 84,536.91 = 34,402.50 : x
  2. Step 2: Convert to fraction form
    61,258.86/84,536.91 = 34,402.50/x
  3. Step 3: Cross multiply
    61,258.86x = 84,536.91 × 34,402.50
  4. Step 4: Simplify right side
    61,258.86x = 2,908,281,046.28
  5. Step 5: Solve for x
    x = 2,908,281,046.28/61,258.86
  6. Step 6: Final answer
    x = 47,475.27

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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.