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Finding the Fourth Proportional to 40,468.99, 60,710.77 and 12,388.52

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Solution

The fourth proportional to 40,468.99, 60,710.77 and 12,388.52 is: 18,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,468.99 : 60,710.77 = 12,388.52 : x
  2. Step 2: Convert to fraction form
    40,468.99/60,710.77 = 12,388.52/x
  3. Step 3: Cross multiply
    40,468.99x = 60,710.77 × 12,388.52
  4. Step 4: Simplify right side
    40,468.99x = 752,116,588.36
  5. Step 5: Solve for x
    x = 752,116,588.36/40,468.99
  6. Step 6: Final answer
    x = 18,585.01

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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.