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Finding the Fourth Proportional to 10,616.01, 15,924.06 and 3,220.55

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Solution

The fourth proportional to 10,616.01, 15,924.06 and 3,220.55 is: 4,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.01 : 15,924.06 = 3,220.55 : x
  2. Step 2: Convert to fraction form
    10,616.01/15,924.06 = 3,220.55/x
  3. Step 3: Cross multiply
    10,616.01x = 15,924.06 × 3,220.55
  4. Step 4: Simplify right side
    10,616.01x = 51,284,151.81
  5. Step 5: Solve for x
    x = 51,284,151.81/10,616.01
  6. Step 6: Final answer
    x = 4,830.83

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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.