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Finding the Fourth Proportional to 12,060.60, 16,662.06 and 10,831.80

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Solution

The fourth proportional to 12,060.60, 16,662.06 and 10,831.80 is: 14,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.60 : 16,662.06 = 10,831.80 : x
  2. Step 2: Convert to fraction form
    12,060.60/16,662.06 = 10,831.80/x
  3. Step 3: Cross multiply
    12,060.60x = 16,662.06 × 10,831.80
  4. Step 4: Simplify right side
    12,060.60x = 180,480,101.51
  5. Step 5: Solve for x
    x = 180,480,101.51/12,060.60
  6. Step 6: Final answer
    x = 14,964.44

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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.