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Finding the Fourth Proportional to 56,265.40, 77,655.80 and 32,405.88

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Solution

The fourth proportional to 56,265.40, 77,655.80 and 32,405.88 is: 44,725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,265.40 : 77,655.80 = 32,405.88 : x
  2. Step 2: Convert to fraction form
    56,265.40/77,655.80 = 32,405.88/x
  3. Step 3: Cross multiply
    56,265.40x = 77,655.80 × 32,405.88
  4. Step 4: Simplify right side
    56,265.40x = 2,516,504,374.07
  5. Step 5: Solve for x
    x = 2,516,504,374.07/56,265.40
  6. Step 6: Final answer
    x = 44,725.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.