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Finding the Fourth Proportional to 10,707.30, 14,774.13 and 6,882.30

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Solution

The fourth proportional to 10,707.30, 14,774.13 and 6,882.30 is: 9,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,707.30 : 14,774.13 = 6,882.30 : x
  2. Step 2: Convert to fraction form
    10,707.30/14,774.13 = 6,882.30/x
  3. Step 3: Cross multiply
    10,707.30x = 14,774.13 × 6,882.30
  4. Step 4: Simplify right side
    10,707.30x = 101,679,994.90
  5. Step 5: Solve for x
    x = 101,679,994.90/10,707.30
  6. Step 6: Final answer
    x = 9,496.32

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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.