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Finding the Fourth Proportional to 1,564.66, 2,158.27 and 1,033.54

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Solution

The fourth proportional to 1,564.66, 2,158.27 and 1,033.54 is: 1,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.66 : 2,158.27 = 1,033.54 : x
  2. Step 2: Convert to fraction form
    1,564.66/2,158.27 = 1,033.54/x
  3. Step 3: Cross multiply
    1,564.66x = 2,158.27 × 1,033.54
  4. Step 4: Simplify right side
    1,564.66x = 2,230,658.38
  5. Step 5: Solve for x
    x = 2,230,658.38/1,564.66
  6. Step 6: Final answer
    x = 1,425.65

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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.