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Finding the Fourth Proportional to 1,566.51, 2,161.62 and 894.30

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Solution

The fourth proportional to 1,566.51, 2,161.62 and 894.30 is: 1,234.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.51 : 2,161.62 = 894.30 : x
  2. Step 2: Convert to fraction form
    1,566.51/2,161.62 = 894.30/x
  3. Step 3: Cross multiply
    1,566.51x = 2,161.62 × 894.30
  4. Step 4: Simplify right side
    1,566.51x = 1,933,136.77
  5. Step 5: Solve for x
    x = 1,933,136.77/1,566.51
  6. Step 6: Final answer
    x = 1,234.04

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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.