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Finding the Fourth Proportional to 11,593.36, 15,973.80 and 7,860.88

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Solution

The fourth proportional to 11,593.36, 15,973.80 and 7,860.88 is: 10,831.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,593.36 : 15,973.80 = 7,860.88 : x
  2. Step 2: Convert to fraction form
    11,593.36/15,973.80 = 7,860.88/x
  3. Step 3: Cross multiply
    11,593.36x = 15,973.80 × 7,860.88
  4. Step 4: Simplify right side
    11,593.36x = 125,568,124.94
  5. Step 5: Solve for x
    x = 125,568,124.94/11,593.36
  6. Step 6: Final answer
    x = 10,831.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.