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Finding the Fourth Proportional to 66,468.38, 91,674.48 and 42,597.26

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Solution

The fourth proportional to 66,468.38, 91,674.48 and 42,597.26 is: 58,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,468.38 : 91,674.48 = 42,597.26 : x
  2. Step 2: Convert to fraction form
    66,468.38/91,674.48 = 42,597.26/x
  3. Step 3: Cross multiply
    66,468.38x = 91,674.48 × 42,597.26
  4. Step 4: Simplify right side
    66,468.38x = 3,905,081,659.92
  5. Step 5: Solve for x
    x = 3,905,081,659.92/66,468.38
  6. Step 6: Final answer
    x = 58,750.97

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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.