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Finding the Fourth Proportional to 18,116.16, 27,169.68 and 7,019.04

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Solution

The fourth proportional to 18,116.16, 27,169.68 and 7,019.04 is: 10,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.16 : 27,169.68 = 7,019.04 : x
  2. Step 2: Convert to fraction form
    18,116.16/27,169.68 = 7,019.04/x
  3. Step 3: Cross multiply
    18,116.16x = 27,169.68 × 7,019.04
  4. Step 4: Simplify right side
    18,116.16x = 190,705,070.71
  5. Step 5: Solve for x
    x = 190,705,070.71/18,116.16
  6. Step 6: Final answer
    x = 10,526.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.