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Finding the Fourth Proportional to 22,172.01, 30,597.08 and 12,740.73

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Solution

The fourth proportional to 22,172.01, 30,597.08 and 12,740.73 is: 17,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,172.01 : 30,597.08 = 12,740.73 : x
  2. Step 2: Convert to fraction form
    22,172.01/30,597.08 = 12,740.73/x
  3. Step 3: Cross multiply
    22,172.01x = 30,597.08 × 12,740.73
  4. Step 4: Simplify right side
    22,172.01x = 389,829,135.07
  5. Step 5: Solve for x
    x = 389,829,135.07/22,172.01
  6. Step 6: Final answer
    x = 17,582.04

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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.