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Finding the Fourth Proportional to 66,347.56, 91,550.10 and 47,276.92

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Solution

The fourth proportional to 66,347.56, 91,550.10 and 47,276.92 is: 65,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.56 : 91,550.10 = 47,276.92 : x
  2. Step 2: Convert to fraction form
    66,347.56/91,550.10 = 47,276.92/x
  3. Step 3: Cross multiply
    66,347.56x = 91,550.10 × 47,276.92
  4. Step 4: Simplify right side
    66,347.56x = 4,328,206,753.69
  5. Step 5: Solve for x
    x = 4,328,206,753.69/66,347.56
  6. Step 6: Final answer
    x = 65,235.36

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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.