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Finding the Fourth Proportional to 12,473.55, 18,711.09 and 5,073.95

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Solution

The fourth proportional to 12,473.55, 18,711.09 and 5,073.95 is: 7,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.55 : 18,711.09 = 5,073.95 : x
  2. Step 2: Convert to fraction form
    12,473.55/18,711.09 = 5,073.95/x
  3. Step 3: Cross multiply
    12,473.55x = 18,711.09 × 5,073.95
  4. Step 4: Simplify right side
    12,473.55x = 94,939,041.55
  5. Step 5: Solve for x
    x = 94,939,041.55/12,473.55
  6. Step 6: Final answer
    x = 7,611.23

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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.