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Finding the Fourth Proportional to 65,988.30, 98,982.45 and 65,988.30

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Solution

The fourth proportional to 65,988.30, 98,982.45 and 65,988.30 is: 98,982.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,988.30 : 98,982.45 = 65,988.30 : x
  2. Step 2: Convert to fraction form
    65,988.30/98,982.45 = 65,988.30/x
  3. Step 3: Cross multiply
    65,988.30x = 98,982.45 × 65,988.30
  4. Step 4: Simplify right side
    65,988.30x = 6,531,683,605.34
  5. Step 5: Solve for x
    x = 6,531,683,605.34/65,988.30
  6. Step 6: Final answer
    x = 98,982.45

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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.