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Finding the Fourth Proportional to 66,573.59, 91,859.37 and 37,891.55

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Solution

The fourth proportional to 66,573.59, 91,859.37 and 37,891.55 is: 52,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,573.59 : 91,859.37 = 37,891.55 : x
  2. Step 2: Convert to fraction form
    66,573.59/91,859.37 = 37,891.55/x
  3. Step 3: Cross multiply
    66,573.59x = 91,859.37 × 37,891.55
  4. Step 4: Simplify right side
    66,573.59x = 3,480,693,911.32
  5. Step 5: Solve for x
    x = 3,480,693,911.32/66,573.59
  6. Step 6: Final answer
    x = 52,283.40

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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.