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Finding the Fourth Proportional to 14,017.59, 20,989.94 and 13,602.06

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Solution

The fourth proportional to 14,017.59, 20,989.94 and 13,602.06 is: 20,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.59 : 20,989.94 = 13,602.06 : x
  2. Step 2: Convert to fraction form
    14,017.59/20,989.94 = 13,602.06/x
  3. Step 3: Cross multiply
    14,017.59x = 20,989.94 × 13,602.06
  4. Step 4: Simplify right side
    14,017.59x = 285,506,355.27
  5. Step 5: Solve for x
    x = 285,506,355.27/14,017.59
  6. Step 6: Final answer
    x = 20,367.72

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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.