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Finding the Fourth Proportional to 66,235.62, 91,403.12 and 37,557.91

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Solution

The fourth proportional to 66,235.62, 91,403.12 and 37,557.91 is: 51,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235.62 : 91,403.12 = 37,557.91 : x
  2. Step 2: Convert to fraction form
    66,235.62/91,403.12 = 37,557.91/x
  3. Step 3: Cross multiply
    66,235.62x = 91,403.12 × 37,557.91
  4. Step 4: Simplify right side
    66,235.62x = 3,432,910,020.07
  5. Step 5: Solve for x
    x = 3,432,910,020.07/66,235.62
  6. Step 6: Final answer
    x = 51,828.76

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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.