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Finding the Fourth Proportional to 19,927.62, 29,656.18 and 19,263.22

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Solution

The fourth proportional to 19,927.62, 29,656.18 and 19,263.22 is: 28,667.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.62 : 29,656.18 = 19,263.22 : x
  2. Step 2: Convert to fraction form
    19,927.62/29,656.18 = 19,263.22/x
  3. Step 3: Cross multiply
    19,927.62x = 29,656.18 × 19,263.22
  4. Step 4: Simplify right side
    19,927.62x = 571,273,519.70
  5. Step 5: Solve for x
    x = 571,273,519.70/19,927.62
  6. Step 6: Final answer
    x = 28,667.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.