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Finding the Fourth Proportional to 14,855.56, 20,497.48 and 8,807.71

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Solution

The fourth proportional to 14,855.56, 20,497.48 and 8,807.71 is: 12,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.56 : 20,497.48 = 8,807.71 : x
  2. Step 2: Convert to fraction form
    14,855.56/20,497.48 = 8,807.71/x
  3. Step 3: Cross multiply
    14,855.56x = 20,497.48 × 8,807.71
  4. Step 4: Simplify right side
    14,855.56x = 180,535,859.57
  5. Step 5: Solve for x
    x = 180,535,859.57/14,855.56
  6. Step 6: Final answer
    x = 12,152.75

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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.