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Finding the Fourth Proportional to 6,482.88, 9,724.80 and 1,866.24

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Solution

The fourth proportional to 6,482.88, 9,724.80 and 1,866.24 is: 2,799.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,482.88 : 9,724.80 = 1,866.24 : x
  2. Step 2: Convert to fraction form
    6,482.88/9,724.80 = 1,866.24/x
  3. Step 3: Cross multiply
    6,482.88x = 9,724.80 × 1,866.24
  4. Step 4: Simplify right side
    6,482.88x = 18,148,810.75
  5. Step 5: Solve for x
    x = 18,148,810.75/6,482.88
  6. Step 6: Final answer
    x = 2,799.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.