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Finding the Fourth Proportional to 14,881.88, 20,536.93 and 8,167.62

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Solution

The fourth proportional to 14,881.88, 20,536.93 and 8,167.62 is: 11,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,881.88 : 20,536.93 = 8,167.62 : x
  2. Step 2: Convert to fraction form
    14,881.88/20,536.93 = 8,167.62/x
  3. Step 3: Cross multiply
    14,881.88x = 20,536.93 × 8,167.62
  4. Step 4: Simplify right side
    14,881.88x = 167,737,737.52
  5. Step 5: Solve for x
    x = 167,737,737.52/14,881.88
  6. Step 6: Final answer
    x = 11,271.28

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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.