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Finding the Fourth Proportional to 35,940.78, 53,809.47 and 19,035.32

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Solution

The fourth proportional to 35,940.78, 53,809.47 and 19,035.32 is: 28,499.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,940.78 : 53,809.47 = 19,035.32 : x
  2. Step 2: Convert to fraction form
    35,940.78/53,809.47 = 19,035.32/x
  3. Step 3: Cross multiply
    35,940.78x = 53,809.47 × 19,035.32
  4. Step 4: Simplify right side
    35,940.78x = 1,024,280,211.43
  5. Step 5: Solve for x
    x = 1,024,280,211.43/35,940.78
  6. Step 6: Final answer
    x = 28,499.11

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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.