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Finding the Fourth Proportional to 22,103.95, 30,503.95 and 12,544.47

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Solution

The fourth proportional to 22,103.95, 30,503.95 and 12,544.47 is: 17,311.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,103.95 : 30,503.95 = 12,544.47 : x
  2. Step 2: Convert to fraction form
    22,103.95/30,503.95 = 12,544.47/x
  3. Step 3: Cross multiply
    22,103.95x = 30,503.95 × 12,544.47
  4. Step 4: Simplify right side
    22,103.95x = 382,655,885.66
  5. Step 5: Solve for x
    x = 382,655,885.66/22,103.95
  6. Step 6: Final answer
    x = 17,311.65

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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.