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Finding the Fourth Proportional to 66,399.59, 99,609.76 and 26,959.48

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Solution

The fourth proportional to 66,399.59, 99,609.76 and 26,959.48 is: 40,443.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,399.59 : 99,609.76 = 26,959.48 : x
  2. Step 2: Convert to fraction form
    66,399.59/99,609.76 = 26,959.48/x
  3. Step 3: Cross multiply
    66,399.59x = 99,609.76 × 26,959.48
  4. Step 4: Simplify right side
    66,399.59x = 2,685,427,332.52
  5. Step 5: Solve for x
    x = 2,685,427,332.52/66,399.59
  6. Step 6: Final answer
    x = 40,443.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.