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Finding the Fourth Proportional to 35,980.73, 53,940.32 and 13,810.02

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Solution

The fourth proportional to 35,980.73, 53,940.32 and 13,810.02 is: 20,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,980.73 : 53,940.32 = 13,810.02 : x
  2. Step 2: Convert to fraction form
    35,980.73/53,940.32 = 13,810.02/x
  3. Step 3: Cross multiply
    35,980.73x = 53,940.32 × 13,810.02
  4. Step 4: Simplify right side
    35,980.73x = 744,916,898.01
  5. Step 5: Solve for x
    x = 744,916,898.01/35,980.73
  6. Step 6: Final answer
    x = 20,703.22

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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.