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Finding the Fourth Proportional to 10,533.66, 15,788.25 and 3,955.65

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Solution

The fourth proportional to 10,533.66, 15,788.25 and 3,955.65 is: 5,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533.66 : 15,788.25 = 3,955.65 : x
  2. Step 2: Convert to fraction form
    10,533.66/15,788.25 = 3,955.65/x
  3. Step 3: Cross multiply
    10,533.66x = 15,788.25 × 3,955.65
  4. Step 4: Simplify right side
    10,533.66x = 62,452,791.11
  5. Step 5: Solve for x
    x = 62,452,791.11/10,533.66
  6. Step 6: Final answer
    x = 5,928.88

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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.