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Finding the Fourth Proportional to 5,891.84, 8,130.76 and 3,239.42

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Solution

The fourth proportional to 5,891.84, 8,130.76 and 3,239.42 is: 4,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.84 : 8,130.76 = 3,239.42 : x
  2. Step 2: Convert to fraction form
    5,891.84/8,130.76 = 3,239.42/x
  3. Step 3: Cross multiply
    5,891.84x = 8,130.76 × 3,239.42
  4. Step 4: Simplify right side
    5,891.84x = 26,338,905.91
  5. Step 5: Solve for x
    x = 26,338,905.91/5,891.84
  6. Step 6: Final answer
    x = 4,470.40

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Half scale
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Double scale
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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.