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Finding the Fourth Proportional to 65,713.48, 98,585.79 and 21,340.24

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Solution

The fourth proportional to 65,713.48, 98,585.79 and 21,340.24 is: 32,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,713.48 : 98,585.79 = 21,340.24 : x
  2. Step 2: Convert to fraction form
    65,713.48/98,585.79 = 21,340.24/x
  3. Step 3: Cross multiply
    65,713.48x = 98,585.79 × 21,340.24
  4. Step 4: Simplify right side
    65,713.48x = 2,103,844,419.19
  5. Step 5: Solve for x
    x = 2,103,844,419.19/65,713.48
  6. Step 6: Final answer
    x = 32,015.42

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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.