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Finding the Fourth Proportional to 61,429.90, 92,144.80 and 17,056.64

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Solution

The fourth proportional to 61,429.90, 92,144.80 and 17,056.64 is: 25,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,429.90 : 92,144.80 = 17,056.64 : x
  2. Step 2: Convert to fraction form
    61,429.90/92,144.80 = 17,056.64/x
  3. Step 3: Cross multiply
    61,429.90x = 92,144.80 × 17,056.64
  4. Step 4: Simplify right side
    61,429.90x = 1,571,680,681.47
  5. Step 5: Solve for x
    x = 1,571,680,681.47/61,429.90
  6. Step 6: Final answer
    x = 25,584.95

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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.