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Finding the Fourth Proportional to 40,214.40, 60,386.40 and 27,124.80

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Solution

The fourth proportional to 40,214.40, 60,386.40 and 27,124.80 is: 40,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,214.40 : 60,386.40 = 27,124.80 : x
  2. Step 2: Convert to fraction form
    40,214.40/60,386.40 = 27,124.80/x
  3. Step 3: Cross multiply
    40,214.40x = 60,386.40 × 27,124.80
  4. Step 4: Simplify right side
    40,214.40x = 1,637,969,022.72
  5. Step 5: Solve for x
    x = 1,637,969,022.72/40,214.40
  6. Step 6: Final answer
    x = 40,730.91

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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.