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Finding the Fourth Proportional to 6,888.24, 9,515.88 and 5,955.12

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Solution

The fourth proportional to 6,888.24, 9,515.88 and 5,955.12 is: 8,226.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.24 : 9,515.88 = 5,955.12 : x
  2. Step 2: Convert to fraction form
    6,888.24/9,515.88 = 5,955.12/x
  3. Step 3: Cross multiply
    6,888.24x = 9,515.88 × 5,955.12
  4. Step 4: Simplify right side
    6,888.24x = 56,668,207.31
  5. Step 5: Solve for x
    x = 56,668,207.31/6,888.24
  6. Step 6: Final answer
    x = 8,226.81

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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.