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Finding the Fourth Proportional to 1,566.55, 2,161.02 and 968.85

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Solution

The fourth proportional to 1,566.55, 2,161.02 and 968.85 is: 1,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.55 : 2,161.02 = 968.85 : x
  2. Step 2: Convert to fraction form
    1,566.55/2,161.02 = 968.85/x
  3. Step 3: Cross multiply
    1,566.55x = 2,161.02 × 968.85
  4. Step 4: Simplify right side
    1,566.55x = 2,093,706.46
  5. Step 5: Solve for x
    x = 2,093,706.46/1,566.55
  6. Step 6: Final answer
    x = 1,336.51

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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.