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Finding the Fourth Proportional to 66,801.58, 92,141.84 and 42,958.42

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Solution

The fourth proportional to 66,801.58, 92,141.84 and 42,958.42 is: 59,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801.58 : 92,141.84 = 42,958.42 : x
  2. Step 2: Convert to fraction form
    66,801.58/92,141.84 = 42,958.42/x
  3. Step 3: Cross multiply
    66,801.58x = 92,141.84 × 42,958.42
  4. Step 4: Simplify right side
    66,801.58x = 3,958,267,739.33
  5. Step 5: Solve for x
    x = 3,958,267,739.33/66,801.58
  6. Step 6: Final answer
    x = 59,254.11

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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.