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Finding the Fourth Proportional to 66,263.52, 91,446.06 and 37,974.68

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Solution

The fourth proportional to 66,263.52, 91,446.06 and 37,974.68 is: 52,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,263.52 : 91,446.06 = 37,974.68 : x
  2. Step 2: Convert to fraction form
    66,263.52/91,446.06 = 37,974.68/x
  3. Step 3: Cross multiply
    66,263.52x = 91,446.06 × 37,974.68
  4. Step 4: Simplify right side
    66,263.52x = 3,472,634,865.76
  5. Step 5: Solve for x
    x = 3,472,634,865.76/66,263.52
  6. Step 6: Final answer
    x = 52,406.44

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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.