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Finding the Fourth Proportional to 28,016.64, 42,026.88 and 9,295.92

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Solution

The fourth proportional to 28,016.64, 42,026.88 and 9,295.92 is: 13,944.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.64 : 42,026.88 = 9,295.92 : x
  2. Step 2: Convert to fraction form
    28,016.64/42,026.88 = 9,295.92/x
  3. Step 3: Cross multiply
    28,016.64x = 42,026.88 × 9,295.92
  4. Step 4: Simplify right side
    28,016.64x = 390,678,514.33
  5. Step 5: Solve for x
    x = 390,678,514.33/28,016.64
  6. Step 6: Final answer
    x = 13,944.52

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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.