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Finding the Fourth Proportional to 22,387.58, 30,894.19 and 12,316.01

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Solution

The fourth proportional to 22,387.58, 30,894.19 and 12,316.01 is: 16,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,387.58 : 30,894.19 = 12,316.01 : x
  2. Step 2: Convert to fraction form
    22,387.58/30,894.19 = 12,316.01/x
  3. Step 3: Cross multiply
    22,387.58x = 30,894.19 × 12,316.01
  4. Step 4: Simplify right side
    22,387.58x = 380,493,091.40
  5. Step 5: Solve for x
    x = 380,493,091.40/22,387.58
  6. Step 6: Final answer
    x = 16,995.73

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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.