Home / 65,938.28-98,914.30-19,191.15

Finding the Fourth Proportional to 65,938.28, 98,914.30 and 19,191.15

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Solution

The fourth proportional to 65,938.28, 98,914.30 and 19,191.15 is: 28,788.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,938.28 : 98,914.30 = 19,191.15 : x
  2. Step 2: Convert to fraction form
    65,938.28/98,914.30 = 19,191.15/x
  3. Step 3: Cross multiply
    65,938.28x = 98,914.30 × 19,191.15
  4. Step 4: Simplify right side
    65,938.28x = 1,898,279,120.47
  5. Step 5: Solve for x
    x = 1,898,279,120.47/65,938.28
  6. Step 6: Final answer
    x = 28,788.73

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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.