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Finding the Fourth Proportional to 66,906.40, 92,326.80 and 37,098.40

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Solution

The fourth proportional to 66,906.40, 92,326.80 and 37,098.40 is: 51,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906.40 : 92,326.80 = 37,098.40 : x
  2. Step 2: Convert to fraction form
    66,906.40/92,326.80 = 37,098.40/x
  3. Step 3: Cross multiply
    66,906.40x = 92,326.80 × 37,098.40
  4. Step 4: Simplify right side
    66,906.40x = 3,425,176,557.12
  5. Step 5: Solve for x
    x = 3,425,176,557.12/66,906.40
  6. Step 6: Final answer
    x = 51,193.56

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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.