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Finding the Fourth Proportional to 66,250.60, 91,427.02 and 36,036.60

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Solution

The fourth proportional to 66,250.60, 91,427.02 and 36,036.60 is: 49,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,250.60 : 91,427.02 = 36,036.60 : x
  2. Step 2: Convert to fraction form
    66,250.60/91,427.02 = 36,036.60/x
  3. Step 3: Cross multiply
    66,250.60x = 91,427.02 × 36,036.60
  4. Step 4: Simplify right side
    66,250.60x = 3,294,718,948.93
  5. Step 5: Solve for x
    x = 3,294,718,948.93/66,250.60
  6. Step 6: Final answer
    x = 49,731.16

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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.