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Finding the Fourth Proportional to 3,061.73, 4,592.60 and 870.18

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Solution

The fourth proportional to 3,061.73, 4,592.60 and 870.18 is: 1,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.73 : 4,592.60 = 870.18 : x
  2. Step 2: Convert to fraction form
    3,061.73/4,592.60 = 870.18/x
  3. Step 3: Cross multiply
    3,061.73x = 4,592.60 × 870.18
  4. Step 4: Simplify right side
    3,061.73x = 3,996,388.67
  5. Step 5: Solve for x
    x = 3,996,388.67/3,061.73
  6. Step 6: Final answer
    x = 1,305.27

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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.