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Finding the Fourth Proportional to 14,661.16, 20,242.10 and 9,081.88

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Solution

The fourth proportional to 14,661.16, 20,242.10 and 9,081.88 is: 12,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,661.16 : 20,242.10 = 9,081.88 : x
  2. Step 2: Convert to fraction form
    14,661.16/20,242.10 = 9,081.88/x
  3. Step 3: Cross multiply
    14,661.16x = 20,242.10 × 9,081.88
  4. Step 4: Simplify right side
    14,661.16x = 183,836,295.25
  5. Step 5: Solve for x
    x = 183,836,295.25/14,661.16
  6. Step 6: Final answer
    x = 12,539.00

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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.