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Finding the Fourth Proportional to 10,533.90, 15,800.10 and 3,959.58

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Solution

The fourth proportional to 10,533.90, 15,800.10 and 3,959.58 is: 5,939.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533.90 : 15,800.10 = 3,959.58 : x
  2. Step 2: Convert to fraction form
    10,533.90/15,800.10 = 3,959.58/x
  3. Step 3: Cross multiply
    10,533.90x = 15,800.10 × 3,959.58
  4. Step 4: Simplify right side
    10,533.90x = 62,561,759.96
  5. Step 5: Solve for x
    x = 62,561,759.96/10,533.90
  6. Step 6: Final answer
    x = 5,939.09

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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.