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Finding the Fourth Proportional to 65,748.52, 98,573.50 and 21,348.76

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Solution

The fourth proportional to 65,748.52, 98,573.50 and 21,348.76 is: 32,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,748.52 : 98,573.50 = 21,348.76 : x
  2. Step 2: Convert to fraction form
    65,748.52/98,573.50 = 21,348.76/x
  3. Step 3: Cross multiply
    65,748.52x = 98,573.50 × 21,348.76
  4. Step 4: Simplify right side
    65,748.52x = 2,104,421,993.86
  5. Step 5: Solve for x
    x = 2,104,421,993.86/65,748.52
  6. Step 6: Final answer
    x = 32,007.14

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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.