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Finding the Fourth Proportional to 14,040.64, 19,375.32 and 7,752.56

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Solution

The fourth proportional to 14,040.64, 19,375.32 and 7,752.56 is: 10,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.64 : 19,375.32 = 7,752.56 : x
  2. Step 2: Convert to fraction form
    14,040.64/19,375.32 = 7,752.56/x
  3. Step 3: Cross multiply
    14,040.64x = 19,375.32 × 7,752.56
  4. Step 4: Simplify right side
    14,040.64x = 150,208,330.82
  5. Step 5: Solve for x
    x = 150,208,330.82/14,040.64
  6. Step 6: Final answer
    x = 10,698.11

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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.