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Finding the Fourth Proportional to 11,560.74, 15,953.78 and 6,255.65

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Solution

The fourth proportional to 11,560.74, 15,953.78 and 6,255.65 is: 8,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,560.74 : 15,953.78 = 6,255.65 : x
  2. Step 2: Convert to fraction form
    11,560.74/15,953.78 = 6,255.65/x
  3. Step 3: Cross multiply
    11,560.74x = 15,953.78 × 6,255.65
  4. Step 4: Simplify right side
    11,560.74x = 99,801,152.81
  5. Step 5: Solve for x
    x = 99,801,152.81/11,560.74
  6. Step 6: Final answer
    x = 8,632.77

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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.