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Finding the Fourth Proportional to 60,802.83, 91,200.60 and 18,683.31

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Solution

The fourth proportional to 60,802.83, 91,200.60 and 18,683.31 is: 28,023.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,802.83 : 91,200.60 = 18,683.31 : x
  2. Step 2: Convert to fraction form
    60,802.83/91,200.60 = 18,683.31/x
  3. Step 3: Cross multiply
    60,802.83x = 91,200.60 × 18,683.31
  4. Step 4: Simplify right side
    60,802.83x = 1,703,929,081.99
  5. Step 5: Solve for x
    x = 1,703,929,081.99/60,802.83
  6. Step 6: Final answer
    x = 28,023.84

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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.