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Finding the Fourth Proportional to 65,950.90, 91,016.70 and 37,260.61

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Solution

The fourth proportional to 65,950.90, 91,016.70 and 37,260.61 is: 51,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,950.90 : 91,016.70 = 37,260.61 : x
  2. Step 2: Convert to fraction form
    65,950.90/91,016.70 = 37,260.61/x
  3. Step 3: Cross multiply
    65,950.90x = 91,016.70 × 37,260.61
  4. Step 4: Simplify right side
    65,950.90x = 3,391,337,307.10
  5. Step 5: Solve for x
    x = 3,391,337,307.10/65,950.90
  6. Step 6: Final answer
    x = 51,422.16

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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.