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Finding the Fourth Proportional to 66,392.52, 91,616.04 and 38,097.60

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Solution

The fourth proportional to 66,392.52, 91,616.04 and 38,097.60 is: 52,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,392.52 : 91,616.04 = 38,097.60 : x
  2. Step 2: Convert to fraction form
    66,392.52/91,616.04 = 38,097.60/x
  3. Step 3: Cross multiply
    66,392.52x = 91,616.04 × 38,097.60
  4. Step 4: Simplify right side
    66,392.52x = 3,490,351,245.50
  5. Step 5: Solve for x
    x = 3,490,351,245.50/66,392.52
  6. Step 6: Final answer
    x = 52,571.45

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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.