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Finding the Fourth Proportional to 64,287.46, 88,711.59 and 35,989.30

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Solution

The fourth proportional to 64,287.46, 88,711.59 and 35,989.30 is: 49,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,287.46 : 88,711.59 = 35,989.30 : x
  2. Step 2: Convert to fraction form
    64,287.46/88,711.59 = 35,989.30/x
  3. Step 3: Cross multiply
    64,287.46x = 88,711.59 × 35,989.30
  4. Step 4: Simplify right side
    64,287.46x = 3,192,668,025.99
  5. Step 5: Solve for x
    x = 3,192,668,025.99/64,287.46
  6. Step 6: Final answer
    x = 49,662.38

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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.