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Finding the Fourth Proportional to 1,743.95, 2,616.00 and 866.87

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Solution

The fourth proportional to 1,743.95, 2,616.00 and 866.87 is: 1,300.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.95 : 2,616.00 = 866.87 : x
  2. Step 2: Convert to fraction form
    1,743.95/2,616.00 = 866.87/x
  3. Step 3: Cross multiply
    1,743.95x = 2,616.00 × 866.87
  4. Step 4: Simplify right side
    1,743.95x = 2,267,725.40
  5. Step 5: Solve for x
    x = 2,267,725.40/1,743.95
  6. Step 6: Final answer
    x = 1,300.34

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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.