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Finding the Fourth Proportional to 65,848.55, 98,794.99 and 20,877.24

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Solution

The fourth proportional to 65,848.55, 98,794.99 and 20,877.24 is: 31,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,848.55 : 98,794.99 = 20,877.24 : x
  2. Step 2: Convert to fraction form
    65,848.55/98,794.99 = 20,877.24/x
  3. Step 3: Cross multiply
    65,848.55x = 98,794.99 × 20,877.24
  4. Step 4: Simplify right side
    65,848.55x = 2,062,567,113.61
  5. Step 5: Solve for x
    x = 2,062,567,113.61/65,848.55
  6. Step 6: Final answer
    x = 31,322.90

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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.