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Finding the Fourth Proportional to 64,794.62, 89,414.34 and 39,303.92

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Solution

The fourth proportional to 64,794.62, 89,414.34 and 39,303.92 is: 54,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,794.62 : 89,414.34 = 39,303.92 : x
  2. Step 2: Convert to fraction form
    64,794.62/89,414.34 = 39,303.92/x
  3. Step 3: Cross multiply
    64,794.62x = 89,414.34 × 39,303.92
  4. Step 4: Simplify right side
    64,794.62x = 3,514,334,066.21
  5. Step 5: Solve for x
    x = 3,514,334,066.21/64,794.62
  6. Step 6: Final answer
    x = 54,238.05

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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.