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Finding the Fourth Proportional to 65,967.26, 98,941.31 and 21,595.76

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Solution

The fourth proportional to 65,967.26, 98,941.31 and 21,595.76 is: 32,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,967.26 : 98,941.31 = 21,595.76 : x
  2. Step 2: Convert to fraction form
    65,967.26/98,941.31 = 21,595.76/x
  3. Step 3: Cross multiply
    65,967.26x = 98,941.31 × 21,595.76
  4. Step 4: Simplify right side
    65,967.26x = 2,136,712,182.16
  5. Step 5: Solve for x
    x = 2,136,712,182.16/65,967.26
  6. Step 6: Final answer
    x = 32,390.50

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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.