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Finding the Fourth Proportional to 91,652.76, 126,470.16 and 53,420.22

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Solution

The fourth proportional to 91,652.76, 126,470.16 and 53,420.22 is: 73,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,652.76 : 126,470.16 = 53,420.22 : x
  2. Step 2: Convert to fraction form
    91,652.76/126,470.16 = 53,420.22/x
  3. Step 3: Cross multiply
    91,652.76x = 126,470.16 × 53,420.22
  4. Step 4: Simplify right side
    91,652.76x = 6,756,063,770.64
  5. Step 5: Solve for x
    x = 6,756,063,770.64/91,652.76
  6. Step 6: Final answer
    x = 73,713.70

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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.