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Finding the Fourth Proportional to 9,800.92, 13,531.04 and 6,619.76

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Solution

The fourth proportional to 9,800.92, 13,531.04 and 6,619.76 is: 9,139.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,800.92 : 13,531.04 = 6,619.76 : x
  2. Step 2: Convert to fraction form
    9,800.92/13,531.04 = 6,619.76/x
  3. Step 3: Cross multiply
    9,800.92x = 13,531.04 × 6,619.76
  4. Step 4: Simplify right side
    9,800.92x = 89,572,237.35
  5. Step 5: Solve for x
    x = 89,572,237.35/9,800.92
  6. Step 6: Final answer
    x = 9,139.17

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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.