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Finding the Fourth Proportional to 11,580.12, 15,974.74 and 7,600.68

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Solution

The fourth proportional to 11,580.12, 15,974.74 and 7,600.68 is: 10,485.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.12 : 15,974.74 = 7,600.68 : x
  2. Step 2: Convert to fraction form
    11,580.12/15,974.74 = 7,600.68/x
  3. Step 3: Cross multiply
    11,580.12x = 15,974.74 × 7,600.68
  4. Step 4: Simplify right side
    11,580.12x = 121,418,886.82
  5. Step 5: Solve for x
    x = 121,418,886.82/11,580.12
  6. Step 6: Final answer
    x = 10,485.11

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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.