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Finding the Fourth Proportional to 8,482.04, 12,721.62 and 2,242.12

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Solution

The fourth proportional to 8,482.04, 12,721.62 and 2,242.12 is: 3,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.04 : 12,721.62 = 2,242.12 : x
  2. Step 2: Convert to fraction form
    8,482.04/12,721.62 = 2,242.12/x
  3. Step 3: Cross multiply
    8,482.04x = 12,721.62 × 2,242.12
  4. Step 4: Simplify right side
    8,482.04x = 28,523,398.63
  5. Step 5: Solve for x
    x = 28,523,398.63/8,482.04
  6. Step 6: Final answer
    x = 3,362.80

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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.