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Finding the Fourth Proportional to 65,897.92, 98,859.30 and 26,458.12

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Solution

The fourth proportional to 65,897.92, 98,859.30 and 26,458.12 is: 39,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,897.92 : 98,859.30 = 26,458.12 : x
  2. Step 2: Convert to fraction form
    65,897.92/98,859.30 = 26,458.12/x
  3. Step 3: Cross multiply
    65,897.92x = 98,859.30 × 26,458.12
  4. Step 4: Simplify right side
    65,897.92x = 2,615,631,222.52
  5. Step 5: Solve for x
    x = 2,615,631,222.52/65,897.92
  6. Step 6: Final answer
    x = 39,692.17

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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.