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Finding the Fourth Proportional to 66,895.98, 92,378.94 and 43,064.07

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Solution

The fourth proportional to 66,895.98, 92,378.94 and 43,064.07 is: 59,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,895.98 : 92,378.94 = 43,064.07 : x
  2. Step 2: Convert to fraction form
    66,895.98/92,378.94 = 43,064.07/x
  3. Step 3: Cross multiply
    66,895.98x = 92,378.94 × 43,064.07
  4. Step 4: Simplify right side
    66,895.98x = 3,978,213,138.69
  5. Step 5: Solve for x
    x = 3,978,213,138.69/66,895.98
  6. Step 6: Final answer
    x = 59,468.64

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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.