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Finding the Fourth Proportional to 12,663.42, 19,002.42 and 4,872.84

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Solution

The fourth proportional to 12,663.42, 19,002.42 and 4,872.84 is: 7,312.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.42 : 19,002.42 = 4,872.84 : x
  2. Step 2: Convert to fraction form
    12,663.42/19,002.42 = 4,872.84/x
  3. Step 3: Cross multiply
    12,663.42x = 19,002.42 × 4,872.84
  4. Step 4: Simplify right side
    12,663.42x = 92,595,752.27
  5. Step 5: Solve for x
    x = 92,595,752.27/12,663.42
  6. Step 6: Final answer
    x = 7,312.07

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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.