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Finding the Fourth Proportional to 64,364.80, 96,590.40 and 29,286.40

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Solution

The fourth proportional to 64,364.80, 96,590.40 and 29,286.40 is: 43,949.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,364.80 : 96,590.40 = 29,286.40 : x
  2. Step 2: Convert to fraction form
    64,364.80/96,590.40 = 29,286.40/x
  3. Step 3: Cross multiply
    64,364.80x = 96,590.40 × 29,286.40
  4. Step 4: Simplify right side
    64,364.80x = 2,828,785,090.56
  5. Step 5: Solve for x
    x = 2,828,785,090.56/64,364.80
  6. Step 6: Final answer
    x = 43,949.26

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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.