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Finding the Fourth Proportional to 40,618.00, 60,923.14 and 12,530.51

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Solution

The fourth proportional to 40,618.00, 60,923.14 and 12,530.51 is: 18,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,618.00 : 60,923.14 = 12,530.51 : x
  2. Step 2: Convert to fraction form
    40,618.00/60,923.14 = 12,530.51/x
  3. Step 3: Cross multiply
    40,618.00x = 60,923.14 × 12,530.51
  4. Step 4: Simplify right side
    40,618.00x = 763,397,679.06
  5. Step 5: Solve for x
    x = 763,397,679.06/40,618.00
  6. Step 6: Final answer
    x = 18,794.57

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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.