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Finding the Fourth Proportional to 41,762.40, 62,643.60 and 30,616.80

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Solution

The fourth proportional to 41,762.40, 62,643.60 and 30,616.80 is: 45,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,762.40 : 62,643.60 = 30,616.80 : x
  2. Step 2: Convert to fraction form
    41,762.40/62,643.60 = 30,616.80/x
  3. Step 3: Cross multiply
    41,762.40x = 62,643.60 × 30,616.80
  4. Step 4: Simplify right side
    41,762.40x = 1,917,946,572.48
  5. Step 5: Solve for x
    x = 1,917,946,572.48/41,762.40
  6. Step 6: Final answer
    x = 45,925.20

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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.