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Finding the Fourth Proportional to 18,089.97, 27,113.09 and 9,320.10

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Solution

The fourth proportional to 18,089.97, 27,113.09 and 9,320.10 is: 13,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.97 : 27,113.09 = 9,320.10 : x
  2. Step 2: Convert to fraction form
    18,089.97/27,113.09 = 9,320.10/x
  3. Step 3: Cross multiply
    18,089.97x = 27,113.09 × 9,320.10
  4. Step 4: Simplify right side
    18,089.97x = 252,696,663.51
  5. Step 5: Solve for x
    x = 252,696,663.51/18,089.97
  6. Step 6: Final answer
    x = 13,968.88

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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.