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Finding the Fourth Proportional to 23,978.08, 35,979.40 and 9,948.48

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Solution

The fourth proportional to 23,978.08, 35,979.40 and 9,948.48 is: 14,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,978.08 : 35,979.40 = 9,948.48 : x
  2. Step 2: Convert to fraction form
    23,978.08/35,979.40 = 9,948.48/x
  3. Step 3: Cross multiply
    23,978.08x = 35,979.40 × 9,948.48
  4. Step 4: Simplify right side
    23,978.08x = 357,940,341.31
  5. Step 5: Solve for x
    x = 357,940,341.31/23,978.08
  6. Step 6: Final answer
    x = 14,927.81

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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.