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Finding the Fourth Proportional to 5,313.56, 7,332.66 and 2,955.66

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Solution

The fourth proportional to 5,313.56, 7,332.66 and 2,955.66 is: 4,078.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.56 : 7,332.66 = 2,955.66 : x
  2. Step 2: Convert to fraction form
    5,313.56/7,332.66 = 2,955.66/x
  3. Step 3: Cross multiply
    5,313.56x = 7,332.66 × 2,955.66
  4. Step 4: Simplify right side
    5,313.56x = 21,672,849.86
  5. Step 5: Solve for x
    x = 21,672,849.86/5,313.56
  6. Step 6: Final answer
    x = 4,078.78

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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.