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Finding the Fourth Proportional to 61,486.88, 84,837.31 and 34,624.04

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Solution

The fourth proportional to 61,486.88, 84,837.31 and 34,624.04 is: 47,772.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,486.88 : 84,837.31 = 34,624.04 : x
  2. Step 2: Convert to fraction form
    61,486.88/84,837.31 = 34,624.04/x
  3. Step 3: Cross multiply
    61,486.88x = 84,837.31 × 34,624.04
  4. Step 4: Simplify right side
    61,486.88x = 2,937,409,904.19
  5. Step 5: Solve for x
    x = 2,937,409,904.19/61,486.88
  6. Step 6: Final answer
    x = 47,772.96

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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.