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Finding the Fourth Proportional to 66,940.79, 100,341.12 and 22,552.20

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Solution

The fourth proportional to 66,940.79, 100,341.12 and 22,552.20 is: 33,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,940.79 : 100,341.12 = 22,552.20 : x
  2. Step 2: Convert to fraction form
    66,940.79/100,341.12 = 22,552.20/x
  3. Step 3: Cross multiply
    66,940.79x = 100,341.12 × 22,552.20
  4. Step 4: Simplify right side
    66,940.79x = 2,262,913,006.46
  5. Step 5: Solve for x
    x = 2,262,913,006.46/66,940.79
  6. Step 6: Final answer
    x = 33,804.70

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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.