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Finding the Fourth Proportional to 29,928.56, 44,894.68 and 12,399.76

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Solution

The fourth proportional to 29,928.56, 44,894.68 and 12,399.76 is: 18,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,928.56 : 44,894.68 = 12,399.76 : x
  2. Step 2: Convert to fraction form
    29,928.56/44,894.68 = 12,399.76/x
  3. Step 3: Cross multiply
    29,928.56x = 44,894.68 × 12,399.76
  4. Step 4: Simplify right side
    29,928.56x = 556,683,257.28
  5. Step 5: Solve for x
    x = 556,683,257.28/29,928.56
  6. Step 6: Final answer
    x = 18,600.40

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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.