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Finding the Fourth Proportional to 5,859.98, 8,789.98 and 1,964.40

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Solution

The fourth proportional to 5,859.98, 8,789.98 and 1,964.40 is: 2,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.98 : 8,789.98 = 1,964.40 : x
  2. Step 2: Convert to fraction form
    5,859.98/8,789.98 = 1,964.40/x
  3. Step 3: Cross multiply
    5,859.98x = 8,789.98 × 1,964.40
  4. Step 4: Simplify right side
    5,859.98x = 17,267,036.71
  5. Step 5: Solve for x
    x = 17,267,036.71/5,859.98
  6. Step 6: Final answer
    x = 2,946.60

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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.