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Finding the Fourth Proportional to 13,468.19, 20,207.15 and 4,704.40

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Solution

The fourth proportional to 13,468.19, 20,207.15 and 4,704.40 is: 7,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,468.19 : 20,207.15 = 4,704.40 : x
  2. Step 2: Convert to fraction form
    13,468.19/20,207.15 = 4,704.40/x
  3. Step 3: Cross multiply
    13,468.19x = 20,207.15 × 4,704.40
  4. Step 4: Simplify right side
    13,468.19x = 95,062,516.46
  5. Step 5: Solve for x
    x = 95,062,516.46/13,468.19
  6. Step 6: Final answer
    x = 7,058.30

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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.