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Finding the Fourth Proportional to 85,596.78, 128,394.81 and 23,267.10

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Solution

The fourth proportional to 85,596.78, 128,394.81 and 23,267.10 is: 34,900.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,596.78 : 128,394.81 = 23,267.10 : x
  2. Step 2: Convert to fraction form
    85,596.78/128,394.81 = 23,267.10/x
  3. Step 3: Cross multiply
    85,596.78x = 128,394.81 × 23,267.10
  4. Step 4: Simplify right side
    85,596.78x = 2,987,374,883.75
  5. Step 5: Solve for x
    x = 2,987,374,883.75/85,596.78
  6. Step 6: Final answer
    x = 34,900.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.