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Finding the Fourth Proportional to 61,104.64, 91,655.28 and 19,551.04

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Solution

The fourth proportional to 61,104.64, 91,655.28 and 19,551.04 is: 29,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,104.64 : 91,655.28 = 19,551.04 : x
  2. Step 2: Convert to fraction form
    61,104.64/91,655.28 = 19,551.04/x
  3. Step 3: Cross multiply
    61,104.64x = 91,655.28 × 19,551.04
  4. Step 4: Simplify right side
    61,104.64x = 1,791,956,045.49
  5. Step 5: Solve for x
    x = 1,791,956,045.49/61,104.64
  6. Step 6: Final answer
    x = 29,326.02

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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.