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Finding the Fourth Proportional to 61,603.31, 92,416.36 and 19,494.00

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Solution

The fourth proportional to 61,603.31, 92,416.36 and 19,494.00 is: 29,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,603.31 : 92,416.36 = 19,494.00 : x
  2. Step 2: Convert to fraction form
    61,603.31/92,416.36 = 19,494.00/x
  3. Step 3: Cross multiply
    61,603.31x = 92,416.36 × 19,494.00
  4. Step 4: Simplify right side
    61,603.31x = 1,801,564,059.76
  5. Step 5: Solve for x
    x = 1,801,564,059.76/61,603.31
  6. Step 6: Final answer
    x = 29,244.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.