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Finding the Fourth Proportional to 66,795.68, 92,177.84 and 38,501.12

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Solution

The fourth proportional to 66,795.68, 92,177.84 and 38,501.12 is: 53,131.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,795.68 : 92,177.84 = 38,501.12 : x
  2. Step 2: Convert to fraction form
    66,795.68/92,177.84 = 38,501.12/x
  3. Step 3: Cross multiply
    66,795.68x = 92,177.84 × 38,501.12
  4. Step 4: Simplify right side
    66,795.68x = 3,548,950,079.18
  5. Step 5: Solve for x
    x = 3,548,950,079.18/66,795.68
  6. Step 6: Final answer
    x = 53,131.43

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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.