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Finding the Fourth Proportional to 51,138.39, 70,552.72 and 29,616.39

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Solution

The fourth proportional to 51,138.39, 70,552.72 and 29,616.39 is: 40,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,138.39 : 70,552.72 = 29,616.39 : x
  2. Step 2: Convert to fraction form
    51,138.39/70,552.72 = 29,616.39/x
  3. Step 3: Cross multiply
    51,138.39x = 70,552.72 × 29,616.39
  4. Step 4: Simplify right side
    51,138.39x = 2,089,516,908.10
  5. Step 5: Solve for x
    x = 2,089,516,908.10/51,138.39
  6. Step 6: Final answer
    x = 40,860.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.