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Finding the Fourth Proportional to 91,625.78, 126,462.06 and 62,631.63

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Solution

The fourth proportional to 91,625.78, 126,462.06 and 62,631.63 is: 86,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,625.78 : 126,462.06 = 62,631.63 : x
  2. Step 2: Convert to fraction form
    91,625.78/126,462.06 = 62,631.63/x
  3. Step 3: Cross multiply
    91,625.78x = 126,462.06 × 62,631.63
  4. Step 4: Simplify right side
    91,625.78x = 7,920,524,950.96
  5. Step 5: Solve for x
    x = 7,920,524,950.96/91,625.78
  6. Step 6: Final answer
    x = 86,444.28

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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.