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Finding the Fourth Proportional to 6,681.88, 9,219.72 and 4,323.70

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Solution

The fourth proportional to 6,681.88, 9,219.72 and 4,323.70 is: 5,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.88 : 9,219.72 = 4,323.70 : x
  2. Step 2: Convert to fraction form
    6,681.88/9,219.72 = 4,323.70/x
  3. Step 3: Cross multiply
    6,681.88x = 9,219.72 × 4,323.70
  4. Step 4: Simplify right side
    6,681.88x = 39,863,303.36
  5. Step 5: Solve for x
    x = 39,863,303.36/6,681.88
  6. Step 6: Final answer
    x = 5,965.88

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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.