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Finding the Fourth Proportional to 6,623.38, 9,920.85 and 6,235.66

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Solution

The fourth proportional to 6,623.38, 9,920.85 and 6,235.66 is: 9,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.38 : 9,920.85 = 6,235.66 : x
  2. Step 2: Convert to fraction form
    6,623.38/9,920.85 = 6,235.66/x
  3. Step 3: Cross multiply
    6,623.38x = 9,920.85 × 6,235.66
  4. Step 4: Simplify right side
    6,623.38x = 61,863,047.51
  5. Step 5: Solve for x
    x = 61,863,047.51/6,623.38
  6. Step 6: Final answer
    x = 9,340.10

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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.