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Finding the Fourth Proportional to 56,633.60, 84,853.20 and 26,987.60

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Solution

The fourth proportional to 56,633.60, 84,853.20 and 26,987.60 is: 40,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,633.60 : 84,853.20 = 26,987.60 : x
  2. Step 2: Convert to fraction form
    56,633.60/84,853.20 = 26,987.60/x
  3. Step 3: Cross multiply
    56,633.60x = 84,853.20 × 26,987.60
  4. Step 4: Simplify right side
    56,633.60x = 2,289,984,220.32
  5. Step 5: Solve for x
    x = 2,289,984,220.32/56,633.60
  6. Step 6: Final answer
    x = 40,435.08

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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.