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Finding the Fourth Proportional to 35,496.86, 53,278.08 and 17,978.99

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Solution

The fourth proportional to 35,496.86, 53,278.08 and 17,978.99 is: 26,985.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,496.86 : 53,278.08 = 17,978.99 : x
  2. Step 2: Convert to fraction form
    35,496.86/53,278.08 = 17,978.99/x
  3. Step 3: Cross multiply
    35,496.86x = 53,278.08 × 17,978.99
  4. Step 4: Simplify right side
    35,496.86x = 957,886,067.54
  5. Step 5: Solve for x
    x = 957,886,067.54/35,496.86
  6. Step 6: Final answer
    x = 26,985.09

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1.5x scale

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.