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Finding the Fourth Proportional to 91,592.91, 126,405.23 and 57,630.51

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Solution

The fourth proportional to 91,592.91, 126,405.23 and 57,630.51 is: 79,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,592.91 : 126,405.23 = 57,630.51 : x
  2. Step 2: Convert to fraction form
    91,592.91/126,405.23 = 57,630.51/x
  3. Step 3: Cross multiply
    91,592.91x = 126,405.23 × 57,630.51
  4. Step 4: Simplify right side
    91,592.91x = 7,284,797,227.90
  5. Step 5: Solve for x
    x = 7,284,797,227.90/91,592.91
  6. Step 6: Final answer
    x = 79,534.51

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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.