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Finding the Fourth Proportional to 15,094.48, 20,831.70 and 8,808.88

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Solution

The fourth proportional to 15,094.48, 20,831.70 and 8,808.88 is: 12,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,094.48 : 20,831.70 = 8,808.88 : x
  2. Step 2: Convert to fraction form
    15,094.48/20,831.70 = 8,808.88/x
  3. Step 3: Cross multiply
    15,094.48x = 20,831.70 × 8,808.88
  4. Step 4: Simplify right side
    15,094.48x = 183,503,945.50
  5. Step 5: Solve for x
    x = 183,503,945.50/15,094.48
  6. Step 6: Final answer
    x = 12,157.02

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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.