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Finding the Fourth Proportional to 18,356.97, 27,516.51 and 7,259.16

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Solution

The fourth proportional to 18,356.97, 27,516.51 and 7,259.16 is: 10,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.97 : 27,516.51 = 7,259.16 : x
  2. Step 2: Convert to fraction form
    18,356.97/27,516.51 = 7,259.16/x
  3. Step 3: Cross multiply
    18,356.97x = 27,516.51 × 7,259.16
  4. Step 4: Simplify right side
    18,356.97x = 199,746,748.73
  5. Step 5: Solve for x
    x = 199,746,748.73/18,356.97
  6. Step 6: Final answer
    x = 10,881.25

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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.