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Finding the Fourth Proportional to 25,772.72, 38,659.92 and 9,130.48

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Solution

The fourth proportional to 25,772.72, 38,659.92 and 9,130.48 is: 13,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,772.72 : 38,659.92 = 9,130.48 : x
  2. Step 2: Convert to fraction form
    25,772.72/38,659.92 = 9,130.48/x
  3. Step 3: Cross multiply
    25,772.72x = 38,659.92 × 9,130.48
  4. Step 4: Simplify right side
    25,772.72x = 352,983,626.36
  5. Step 5: Solve for x
    x = 352,983,626.36/25,772.72
  6. Step 6: Final answer
    x = 13,696.02

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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.