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Finding the Fourth Proportional to 12,062.40, 16,600.80 and 9,950.40

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Solution

The fourth proportional to 12,062.40, 16,600.80 and 9,950.40 is: 13,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.40 : 16,600.80 = 9,950.40 : x
  2. Step 2: Convert to fraction form
    12,062.40/16,600.80 = 9,950.40/x
  3. Step 3: Cross multiply
    12,062.40x = 16,600.80 × 9,950.40
  4. Step 4: Simplify right side
    12,062.40x = 165,184,600.32
  5. Step 5: Solve for x
    x = 165,184,600.32/12,062.40
  6. Step 6: Final answer
    x = 13,694.17

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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.