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Finding the Fourth Proportional to 65,951.90, 91,018.08 and 37,261.61

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Solution

The fourth proportional to 65,951.90, 91,018.08 and 37,261.61 is: 51,423.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,951.90 : 91,018.08 = 37,261.61 : x
  2. Step 2: Convert to fraction form
    65,951.90/91,018.08 = 37,261.61/x
  3. Step 3: Cross multiply
    65,951.90x = 91,018.08 × 37,261.61
  4. Step 4: Simplify right side
    65,951.90x = 3,391,480,199.91
  5. Step 5: Solve for x
    x = 3,391,480,199.91/65,951.90
  6. Step 6: Final answer
    x = 51,423.54

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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.