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Finding the Fourth Proportional to 15,647.33, 21,593.03 and 8,573.60

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Solution

The fourth proportional to 15,647.33, 21,593.03 and 8,573.60 is: 11,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.33 : 21,593.03 = 8,573.60 : x
  2. Step 2: Convert to fraction form
    15,647.33/21,593.03 = 8,573.60/x
  3. Step 3: Cross multiply
    15,647.33x = 21,593.03 × 8,573.60
  4. Step 4: Simplify right side
    15,647.33x = 185,129,851.17
  5. Step 5: Solve for x
    x = 185,129,851.17/15,647.33
  6. Step 6: Final answer
    x = 11,831.41

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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.