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Finding the Fourth Proportional to 40,437.81, 60,699.84 and 35,787.40

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Solution

The fourth proportional to 40,437.81, 60,699.84 and 35,787.40 is: 53,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,437.81 : 60,699.84 = 35,787.40 : x
  2. Step 2: Convert to fraction form
    40,437.81/60,699.84 = 35,787.40/x
  3. Step 3: Cross multiply
    40,437.81x = 60,699.84 × 35,787.40
  4. Step 4: Simplify right side
    40,437.81x = 2,172,289,454.02
  5. Step 5: Solve for x
    x = 2,172,289,454.02/40,437.81
  6. Step 6: Final answer
    x = 53,719.27

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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.