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Finding the Fourth Proportional to 10,954.70, 16,432.05 and 3,559.40

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Solution

The fourth proportional to 10,954.70, 16,432.05 and 3,559.40 is: 5,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.70 : 16,432.05 = 3,559.40 : x
  2. Step 2: Convert to fraction form
    10,954.70/16,432.05 = 3,559.40/x
  3. Step 3: Cross multiply
    10,954.70x = 16,432.05 × 3,559.40
  4. Step 4: Simplify right side
    10,954.70x = 58,488,238.77
  5. Step 5: Solve for x
    x = 58,488,238.77/10,954.70
  6. Step 6: Final answer
    x = 5,339.10

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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.