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Finding the Fourth Proportional to 66,266.52, 91,447.76 and 36,458.52

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Solution

The fourth proportional to 66,266.52, 91,447.76 and 36,458.52 is: 50,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,266.52 : 91,447.76 = 36,458.52 : x
  2. Step 2: Convert to fraction form
    66,266.52/91,447.76 = 36,458.52/x
  3. Step 3: Cross multiply
    66,266.52x = 91,447.76 × 36,458.52
  4. Step 4: Simplify right side
    66,266.52x = 3,334,049,986.92
  5. Step 5: Solve for x
    x = 3,334,049,986.92/66,266.52
  6. Step 6: Final answer
    x = 50,312.74

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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.