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Finding the Fourth Proportional to 2,587.47, 3,880.01 and 832.14

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Solution

The fourth proportional to 2,587.47, 3,880.01 and 832.14 is: 1,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.47 : 3,880.01 = 832.14 : x
  2. Step 2: Convert to fraction form
    2,587.47/3,880.01 = 832.14/x
  3. Step 3: Cross multiply
    2,587.47x = 3,880.01 × 832.14
  4. Step 4: Simplify right side
    2,587.47x = 3,228,721.91
  5. Step 5: Solve for x
    x = 3,228,721.91/2,587.47
  6. Step 6: Final answer
    x = 1,247.83

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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.