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Finding the Fourth Proportional to 14,595.71, 20,223.44 and 14,280.42

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Solution

The fourth proportional to 14,595.71, 20,223.44 and 14,280.42 is: 19,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,595.71 : 20,223.44 = 14,280.42 : x
  2. Step 2: Convert to fraction form
    14,595.71/20,223.44 = 14,280.42/x
  3. Step 3: Cross multiply
    14,595.71x = 20,223.44 × 14,280.42
  4. Step 4: Simplify right side
    14,595.71x = 288,799,217.04
  5. Step 5: Solve for x
    x = 288,799,217.04/14,595.71
  6. Step 6: Final answer
    x = 19,786.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.