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Finding the Fourth Proportional to 10,874.73, 15,009.32 and 7,098.51

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Solution

The fourth proportional to 10,874.73, 15,009.32 and 7,098.51 is: 9,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.73 : 15,009.32 = 7,098.51 : x
  2. Step 2: Convert to fraction form
    10,874.73/15,009.32 = 7,098.51/x
  3. Step 3: Cross multiply
    10,874.73x = 15,009.32 × 7,098.51
  4. Step 4: Simplify right side
    10,874.73x = 106,543,808.11
  5. Step 5: Solve for x
    x = 106,543,808.11/10,874.73
  6. Step 6: Final answer
    x = 9,797.38

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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.