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Finding the Fourth Proportional to 3,547.81, 5,321.72 and 950.82

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Solution

The fourth proportional to 3,547.81, 5,321.72 and 950.82 is: 1,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.81 : 5,321.72 = 950.82 : x
  2. Step 2: Convert to fraction form
    3,547.81/5,321.72 = 950.82/x
  3. Step 3: Cross multiply
    3,547.81x = 5,321.72 × 950.82
  4. Step 4: Simplify right side
    3,547.81x = 5,059,997.81
  5. Step 5: Solve for x
    x = 5,059,997.81/3,547.81
  6. Step 6: Final answer
    x = 1,426.23

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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.