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Finding the Fourth Proportional to 61,968.70, 92,988.96 and 26,428.11

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Solution

The fourth proportional to 61,968.70, 92,988.96 and 26,428.11 is: 39,657.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,968.70 : 92,988.96 = 26,428.11 : x
  2. Step 2: Convert to fraction form
    61,968.70/92,988.96 = 26,428.11/x
  3. Step 3: Cross multiply
    61,968.70x = 92,988.96 × 26,428.11
  4. Step 4: Simplify right side
    61,968.70x = 2,457,522,463.67
  5. Step 5: Solve for x
    x = 2,457,522,463.67/61,968.70
  6. Step 6: Final answer
    x = 39,657.48

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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.