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Finding the Fourth Proportional to 11,114.46, 15,333 and 7,332.78

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Solution

The fourth proportional to 11,114.46, 15,333 and 7,332.78 is: 10,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.46 : 15,333 = 7,332.78 : x
  2. Step 2: Convert to fraction form
    11,114.46/15,333 = 7,332.78/x
  3. Step 3: Cross multiply
    11,114.46x = 15,333 × 7,332.78
  4. Step 4: Simplify right side
    11,114.46x = 112,433,515.74
  5. Step 5: Solve for x
    x = 112,433,515.74/11,114.46
  6. Step 6: Final answer
    x = 10,115.97

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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.