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Finding the Fourth Proportional to 60,656.62, 90,927.36 and 21,188.02

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Solution

The fourth proportional to 60,656.62, 90,927.36 and 21,188.02 is: 31,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,656.62 : 90,927.36 = 21,188.02 : x
  2. Step 2: Convert to fraction form
    60,656.62/90,927.36 = 21,188.02/x
  3. Step 3: Cross multiply
    60,656.62x = 90,927.36 × 21,188.02
  4. Step 4: Simplify right side
    60,656.62x = 1,926,570,722.23
  5. Step 5: Solve for x
    x = 1,926,570,722.23/60,656.62
  6. Step 6: Final answer
    x = 31,761.92

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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.