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Finding the Fourth Proportional to 66,224.88, 91,329.80 and 49,271.58

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Solution

The fourth proportional to 66,224.88, 91,329.80 and 49,271.58 is: 67,949.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,224.88 : 91,329.80 = 49,271.58 : x
  2. Step 2: Convert to fraction form
    66,224.88/91,329.80 = 49,271.58/x
  3. Step 3: Cross multiply
    66,224.88x = 91,329.80 × 49,271.58
  4. Step 4: Simplify right side
    66,224.88x = 4,499,963,300.73
  5. Step 5: Solve for x
    x = 4,499,963,300.73/66,224.88
  6. Step 6: Final answer
    x = 67,949.74

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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.