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Finding the Fourth Proportional to 65,893.88, 98,820.18 and 21,510.52

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Solution

The fourth proportional to 65,893.88, 98,820.18 and 21,510.52 is: 32,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,893.88 : 98,820.18 = 21,510.52 : x
  2. Step 2: Convert to fraction form
    65,893.88/98,820.18 = 21,510.52/x
  3. Step 3: Cross multiply
    65,893.88x = 98,820.18 × 21,510.52
  4. Step 4: Simplify right side
    65,893.88x = 2,125,673,458.29
  5. Step 5: Solve for x
    x = 2,125,673,458.29/65,893.88
  6. Step 6: Final answer
    x = 32,259.04

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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.