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Finding the Fourth Proportional to 66,284.25, 91,472.28 and 36,476.25

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Solution

The fourth proportional to 66,284.25, 91,472.28 and 36,476.25 is: 50,337.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,284.25 : 91,472.28 = 36,476.25 : x
  2. Step 2: Convert to fraction form
    66,284.25/91,472.28 = 36,476.25/x
  3. Step 3: Cross multiply
    66,284.25x = 91,472.28 × 36,476.25
  4. Step 4: Simplify right side
    66,284.25x = 3,336,565,753.35
  5. Step 5: Solve for x
    x = 3,336,565,753.35/66,284.25
  6. Step 6: Final answer
    x = 50,337.23

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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.