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Finding the Fourth Proportional to 62,803.04, 86,668.68 and 34,509.20

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Solution

The fourth proportional to 62,803.04, 86,668.68 and 34,509.20 is: 47,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,803.04 : 86,668.68 = 34,509.20 : x
  2. Step 2: Convert to fraction form
    62,803.04/86,668.68 = 34,509.20/x
  3. Step 3: Cross multiply
    62,803.04x = 86,668.68 × 34,509.20
  4. Step 4: Simplify right side
    62,803.04x = 2,990,866,811.86
  5. Step 5: Solve for x
    x = 2,990,866,811.86/62,803.04
  6. Step 6: Final answer
    x = 47,622.96

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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.