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Finding the Fourth Proportional to 9,895.66, 14,843.95 and 5,509.81

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Solution

The fourth proportional to 9,895.66, 14,843.95 and 5,509.81 is: 8,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.66 : 14,843.95 = 5,509.81 : x
  2. Step 2: Convert to fraction form
    9,895.66/14,843.95 = 5,509.81/x
  3. Step 3: Cross multiply
    9,895.66x = 14,843.95 × 5,509.81
  4. Step 4: Simplify right side
    9,895.66x = 81,787,348.93
  5. Step 5: Solve for x
    x = 81,787,348.93/9,895.66
  6. Step 6: Final answer
    x = 8,264.97

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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.