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Finding the Fourth Proportional to 61,043.64, 91,551.12 and 16,659.84

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Solution

The fourth proportional to 61,043.64, 91,551.12 and 16,659.84 is: 24,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,043.64 : 91,551.12 = 16,659.84 : x
  2. Step 2: Convert to fraction form
    61,043.64/91,551.12 = 16,659.84/x
  3. Step 3: Cross multiply
    61,043.64x = 91,551.12 × 16,659.84
  4. Step 4: Simplify right side
    61,043.64x = 1,525,227,011.02
  5. Step 5: Solve for x
    x = 1,525,227,011.02/61,043.64
  6. Step 6: Final answer
    x = 24,985.85

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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.