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Finding the Fourth Proportional to 66,637.91, 91,951.44 and 42,796.88

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Solution

The fourth proportional to 66,637.91, 91,951.44 and 42,796.88 is: 59,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,637.91 : 91,951.44 = 42,796.88 : x
  2. Step 2: Convert to fraction form
    66,637.91/91,951.44 = 42,796.88/x
  3. Step 3: Cross multiply
    66,637.91x = 91,951.44 × 42,796.88
  4. Step 4: Simplify right side
    66,637.91x = 3,935,234,743.51
  5. Step 5: Solve for x
    x = 3,935,234,743.51/66,637.91
  6. Step 6: Final answer
    x = 59,053.99

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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.