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Finding the Fourth Proportional to 18,648.53, 27,973.17 and 6,959.42

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Solution

The fourth proportional to 18,648.53, 27,973.17 and 6,959.42 is: 10,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,648.53 : 27,973.17 = 6,959.42 : x
  2. Step 2: Convert to fraction form
    18,648.53/27,973.17 = 6,959.42/x
  3. Step 3: Cross multiply
    18,648.53x = 27,973.17 × 6,959.42
  4. Step 4: Simplify right side
    18,648.53x = 194,677,038.76
  5. Step 5: Solve for x
    x = 194,677,038.76/18,648.53
  6. Step 6: Final answer
    x = 10,439.27

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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.