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Finding the Fourth Proportional to 35,358.52, 53,030.31 and 10,391.79

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Solution

The fourth proportional to 35,358.52, 53,030.31 and 10,391.79 is: 15,585.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,358.52 : 53,030.31 = 10,391.79 : x
  2. Step 2: Convert to fraction form
    35,358.52/53,030.31 = 10,391.79/x
  3. Step 3: Cross multiply
    35,358.52x = 53,030.31 × 10,391.79
  4. Step 4: Simplify right side
    35,358.52x = 551,079,845.15
  5. Step 5: Solve for x
    x = 551,079,845.15/35,358.52
  6. Step 6: Final answer
    x = 15,585.49

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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.