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Finding the Fourth Proportional to 45,809.60, 68,648.80 and 26,046.40

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Solution

The fourth proportional to 45,809.60, 68,648.80 and 26,046.40 is: 39,032.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,809.60 : 68,648.80 = 26,046.40 : x
  2. Step 2: Convert to fraction form
    45,809.60/68,648.80 = 26,046.40/x
  3. Step 3: Cross multiply
    45,809.60x = 68,648.80 × 26,046.40
  4. Step 4: Simplify right side
    45,809.60x = 1,788,054,104.32
  5. Step 5: Solve for x
    x = 1,788,054,104.32/45,809.60
  6. Step 6: Final answer
    x = 39,032.30

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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.