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Finding the Fourth Proportional to 22,172.98, 33,259.47 and 12,932.50

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Solution

The fourth proportional to 22,172.98, 33,259.47 and 12,932.50 is: 19,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,172.98 : 33,259.47 = 12,932.50 : x
  2. Step 2: Convert to fraction form
    22,172.98/33,259.47 = 12,932.50/x
  3. Step 3: Cross multiply
    22,172.98x = 33,259.47 × 12,932.50
  4. Step 4: Simplify right side
    22,172.98x = 430,128,095.78
  5. Step 5: Solve for x
    x = 430,128,095.78/22,172.98
  6. Step 6: Final answer
    x = 19,398.75

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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.