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Finding the Fourth Proportional to 35,409.54, 53,147.16 and 17,891.67

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Solution

The fourth proportional to 35,409.54, 53,147.16 and 17,891.67 is: 26,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,409.54 : 53,147.16 = 17,891.67 : x
  2. Step 2: Convert to fraction form
    35,409.54/53,147.16 = 17,891.67/x
  3. Step 3: Cross multiply
    35,409.54x = 53,147.16 × 17,891.67
  4. Step 4: Simplify right side
    35,409.54x = 950,891,448.16
  5. Step 5: Solve for x
    x = 950,891,448.16/35,409.54
  6. Step 6: Final answer
    x = 26,854.10

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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.