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Finding the Fourth Proportional to 66,270.71, 91,455.15 and 37,592.31

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Solution

The fourth proportional to 66,270.71, 91,455.15 and 37,592.31 is: 51,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,270.71 : 91,455.15 = 37,592.31 : x
  2. Step 2: Convert to fraction form
    66,270.71/91,455.15 = 37,592.31/x
  3. Step 3: Cross multiply
    66,270.71x = 91,455.15 × 37,592.31
  4. Step 4: Simplify right side
    66,270.71x = 3,438,009,892.62
  5. Step 5: Solve for x
    x = 3,438,009,892.62/66,270.71
  6. Step 6: Final answer
    x = 51,878.27

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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.