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Finding the Fourth Proportional to 9,895.56, 14,843.80 and 5,509.72

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Solution

The fourth proportional to 9,895.56, 14,843.80 and 5,509.72 is: 8,264.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.56 : 14,843.80 = 5,509.72 : x
  2. Step 2: Convert to fraction form
    9,895.56/14,843.80 = 5,509.72/x
  3. Step 3: Cross multiply
    9,895.56x = 14,843.80 × 5,509.72
  4. Step 4: Simplify right side
    9,895.56x = 81,785,151.51
  5. Step 5: Solve for x
    x = 81,785,151.51/9,895.56
  6. Step 6: Final answer
    x = 8,264.83

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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.