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Finding the Fourth Proportional to 9,776.70, 14,664.42 and 4,226.13

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Solution

The fourth proportional to 9,776.70, 14,664.42 and 4,226.13 is: 6,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,776.70 : 14,664.42 = 4,226.13 : x
  2. Step 2: Convert to fraction form
    9,776.70/14,664.42 = 4,226.13/x
  3. Step 3: Cross multiply
    9,776.70x = 14,664.42 × 4,226.13
  4. Step 4: Simplify right side
    9,776.70x = 61,973,745.29
  5. Step 5: Solve for x
    x = 61,973,745.29/9,776.70
  6. Step 6: Final answer
    x = 6,338.92

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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.