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Finding the Fourth Proportional to 64,008.40, 95,890.20 and 34,416.40

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Solution

The fourth proportional to 64,008.40, 95,890.20 and 34,416.40 is: 51,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,008.40 : 95,890.20 = 34,416.40 : x
  2. Step 2: Convert to fraction form
    64,008.40/95,890.20 = 34,416.40/x
  3. Step 3: Cross multiply
    64,008.40x = 95,890.20 × 34,416.40
  4. Step 4: Simplify right side
    64,008.40x = 3,300,195,479.28
  5. Step 5: Solve for x
    x = 3,300,195,479.28/64,008.40
  6. Step 6: Final answer
    x = 51,558.79

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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.