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Finding the Fourth Proportional to 8,964.13, 12,349.08 and 6,270.32

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Solution

The fourth proportional to 8,964.13, 12,349.08 and 6,270.32 is: 8,638.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.13 : 12,349.08 = 6,270.32 : x
  2. Step 2: Convert to fraction form
    8,964.13/12,349.08 = 6,270.32/x
  3. Step 3: Cross multiply
    8,964.13x = 12,349.08 × 6,270.32
  4. Step 4: Simplify right side
    8,964.13x = 77,432,621.56
  5. Step 5: Solve for x
    x = 77,432,621.56/8,964.13
  6. Step 6: Final answer
    x = 8,638.06

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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.