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Finding the Fourth Proportional to 7,955.91, 11,002.97 and 6,959.45

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Solution

The fourth proportional to 7,955.91, 11,002.97 and 6,959.45 is: 9,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.91 : 11,002.97 = 6,959.45 : x
  2. Step 2: Convert to fraction form
    7,955.91/11,002.97 = 6,959.45/x
  3. Step 3: Cross multiply
    7,955.91x = 11,002.97 × 6,959.45
  4. Step 4: Simplify right side
    7,955.91x = 76,574,529.75
  5. Step 5: Solve for x
    x = 76,574,529.75/7,955.91
  6. Step 6: Final answer
    x = 9,624.86

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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.