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Finding the Fourth Proportional to 66,998.34, 92,364.30 and 54,856.44

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Solution

The fourth proportional to 66,998.34, 92,364.30 and 54,856.44 is: 75,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,998.34 : 92,364.30 = 54,856.44 : x
  2. Step 2: Convert to fraction form
    66,998.34/92,364.30 = 54,856.44/x
  3. Step 3: Cross multiply
    66,998.34x = 92,364.30 × 54,856.44
  4. Step 4: Simplify right side
    66,998.34x = 5,066,776,681.09
  5. Step 5: Solve for x
    x = 5,066,776,681.09/66,998.34
  6. Step 6: Final answer
    x = 75,625.41

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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.