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Finding the Fourth Proportional to 62,625.76, 86,421.54 and 34,330.84

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Solution

The fourth proportional to 62,625.76, 86,421.54 and 34,330.84 is: 47,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,625.76 : 86,421.54 = 34,330.84 : x
  2. Step 2: Convert to fraction form
    62,625.76/86,421.54 = 34,330.84/x
  3. Step 3: Cross multiply
    62,625.76x = 86,421.54 × 34,330.84
  4. Step 4: Simplify right side
    62,625.76x = 2,966,924,062.29
  5. Step 5: Solve for x
    x = 2,966,924,062.29/62,625.76
  6. Step 6: Final answer
    x = 47,375.46

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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.