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Finding the Fourth Proportional to 65,863.76, 98,795.89 and 15,943.77

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Solution

The fourth proportional to 65,863.76, 98,795.89 and 15,943.77 is: 23,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.76 : 98,795.89 = 15,943.77 : x
  2. Step 2: Convert to fraction form
    65,863.76/98,795.89 = 15,943.77/x
  3. Step 3: Cross multiply
    65,863.76x = 98,795.89 × 15,943.77
  4. Step 4: Simplify right side
    65,863.76x = 1,575,179,289.74
  5. Step 5: Solve for x
    x = 1,575,179,289.74/65,863.76
  6. Step 6: Final answer
    x = 23,915.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.