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Finding the Fourth Proportional to 25,647.54, 35,392.95 and 16,678.13

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Solution

The fourth proportional to 25,647.54, 35,392.95 and 16,678.13 is: 23,015.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647.54 : 35,392.95 = 16,678.13 : x
  2. Step 2: Convert to fraction form
    25,647.54/35,392.95 = 16,678.13/x
  3. Step 3: Cross multiply
    25,647.54x = 35,392.95 × 16,678.13
  4. Step 4: Simplify right side
    25,647.54x = 590,288,044.22
  5. Step 5: Solve for x
    x = 590,288,044.22/25,647.54
  6. Step 6: Final answer
    x = 23,015.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.