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Finding the Fourth Proportional to 10,752.54, 16,128.66 and 7,576.86

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Solution

The fourth proportional to 10,752.54, 16,128.66 and 7,576.86 is: 11,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,752.54 : 16,128.66 = 7,576.86 : x
  2. Step 2: Convert to fraction form
    10,752.54/16,128.66 = 7,576.86/x
  3. Step 3: Cross multiply
    10,752.54x = 16,128.66 × 7,576.86
  4. Step 4: Simplify right side
    10,752.54x = 122,204,598.81
  5. Step 5: Solve for x
    x = 122,204,598.81/10,752.54
  6. Step 6: Final answer
    x = 11,365.18

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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.