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Finding the Fourth Proportional to 91,952.76, 126,892.80 and 51,114.18

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Solution

The fourth proportional to 91,952.76, 126,892.80 and 51,114.18 is: 70,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,952.76 : 126,892.80 = 51,114.18 : x
  2. Step 2: Convert to fraction form
    91,952.76/126,892.80 = 51,114.18/x
  3. Step 3: Cross multiply
    91,952.76x = 126,892.80 × 51,114.18
  4. Step 4: Simplify right side
    91,952.76x = 6,486,021,419.90
  5. Step 5: Solve for x
    x = 6,486,021,419.90/91,952.76
  6. Step 6: Final answer
    x = 70,536.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.