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Finding the Fourth Proportional to 35,908.47, 53,866.40 and 13,740.49

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Solution

The fourth proportional to 35,908.47, 53,866.40 and 13,740.49 is: 20,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,908.47 : 53,866.40 = 13,740.49 : x
  2. Step 2: Convert to fraction form
    35,908.47/53,866.40 = 13,740.49/x
  3. Step 3: Cross multiply
    35,908.47x = 53,866.40 × 13,740.49
  4. Step 4: Simplify right side
    35,908.47x = 740,150,730.54
  5. Step 5: Solve for x
    x = 740,150,730.54/35,908.47
  6. Step 6: Final answer
    x = 20,612.15

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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.