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Finding the Fourth Proportional to 61,833.47, 92,674.20 and 28,507.28

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Solution

The fourth proportional to 61,833.47, 92,674.20 and 28,507.28 is: 42,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,833.47 : 92,674.20 = 28,507.28 : x
  2. Step 2: Convert to fraction form
    61,833.47/92,674.20 = 28,507.28/x
  3. Step 3: Cross multiply
    61,833.47x = 92,674.20 × 28,507.28
  4. Step 4: Simplify right side
    61,833.47x = 2,641,889,368.18
  5. Step 5: Solve for x
    x = 2,641,889,368.18/61,833.47
  6. Step 6: Final answer
    x = 42,725.88

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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.