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Finding the Fourth Proportional to 66,240.62, 91,411.98 and 37,946.42

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Solution

The fourth proportional to 66,240.62, 91,411.98 and 37,946.42 is: 52,366.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,240.62 : 91,411.98 = 37,946.42 : x
  2. Step 2: Convert to fraction form
    66,240.62/91,411.98 = 37,946.42/x
  3. Step 3: Cross multiply
    66,240.62x = 91,411.98 × 37,946.42
  4. Step 4: Simplify right side
    66,240.62x = 3,468,757,386.11
  5. Step 5: Solve for x
    x = 3,468,757,386.11/66,240.62
  6. Step 6: Final answer
    x = 52,366.02

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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.