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Finding the Fourth Proportional to 10,874.02, 15,010.74 and 7,342.02

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Solution

The fourth proportional to 10,874.02, 15,010.74 and 7,342.02 is: 10,135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.02 : 15,010.74 = 7,342.02 : x
  2. Step 2: Convert to fraction form
    10,874.02/15,010.74 = 7,342.02/x
  3. Step 3: Cross multiply
    10,874.02x = 15,010.74 × 7,342.02
  4. Step 4: Simplify right side
    10,874.02x = 110,209,153.29
  5. Step 5: Solve for x
    x = 110,209,153.29/10,874.02
  6. Step 6: Final answer
    x = 10,135.09

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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.