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Finding the Fourth Proportional to 66,911.61, 100,367.58 and 22,569.51

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Solution

The fourth proportional to 66,911.61, 100,367.58 and 22,569.51 is: 33,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.61 : 100,367.58 = 22,569.51 : x
  2. Step 2: Convert to fraction form
    66,911.61/100,367.58 = 22,569.51/x
  3. Step 3: Cross multiply
    66,911.61x = 100,367.58 × 22,569.51
  4. Step 4: Simplify right side
    66,911.61x = 2,265,247,100.49
  5. Step 5: Solve for x
    x = 2,265,247,100.49/66,911.61
  6. Step 6: Final answer
    x = 33,854.32

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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.