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Finding the Fourth Proportional to 35,400.40, 53,179.80 and 29,568.40

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Solution

The fourth proportional to 35,400.40, 53,179.80 and 29,568.40 is: 44,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,400.40 : 53,179.80 = 29,568.40 : x
  2. Step 2: Convert to fraction form
    35,400.40/53,179.80 = 29,568.40/x
  3. Step 3: Cross multiply
    35,400.40x = 53,179.80 × 29,568.40
  4. Step 4: Simplify right side
    35,400.40x = 1,572,441,598.32
  5. Step 5: Solve for x
    x = 1,572,441,598.32/35,400.40
  6. Step 6: Final answer
    x = 44,418.75

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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.