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Finding the Fourth Proportional to 65,459.52, 98,188.56 and 27,987.84

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Solution

The fourth proportional to 65,459.52, 98,188.56 and 27,987.84 is: 41,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,459.52 : 98,188.56 = 27,987.84 : x
  2. Step 2: Convert to fraction form
    65,459.52/98,188.56 = 27,987.84/x
  3. Step 3: Cross multiply
    65,459.52x = 98,188.56 × 27,987.84
  4. Step 4: Simplify right side
    65,459.52x = 2,748,085,707.11
  5. Step 5: Solve for x
    x = 2,748,085,707.11/65,459.52
  6. Step 6: Final answer
    x = 41,981.45

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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.