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Finding the Fourth Proportional to 25,509.36, 38,254.92 and 8,865.36

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Solution

The fourth proportional to 25,509.36, 38,254.92 and 8,865.36 is: 13,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,509.36 : 38,254.92 = 8,865.36 : x
  2. Step 2: Convert to fraction form
    25,509.36/38,254.92 = 8,865.36/x
  3. Step 3: Cross multiply
    25,509.36x = 38,254.92 × 8,865.36
  4. Step 4: Simplify right side
    25,509.36x = 339,143,637.57
  5. Step 5: Solve for x
    x = 339,143,637.57/25,509.36
  6. Step 6: Final answer
    x = 13,294.87

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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.