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Finding the Fourth Proportional to 17,778.32, 26,669.02 and 4,630.72

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Solution

The fourth proportional to 17,778.32, 26,669.02 and 4,630.72 is: 6,946.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,778.32 : 26,669.02 = 4,630.72 : x
  2. Step 2: Convert to fraction form
    17,778.32/26,669.02 = 4,630.72/x
  3. Step 3: Cross multiply
    17,778.32x = 26,669.02 × 4,630.72
  4. Step 4: Simplify right side
    17,778.32x = 123,496,764.29
  5. Step 5: Solve for x
    x = 123,496,764.29/17,778.32
  6. Step 6: Final answer
    x = 6,946.48

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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.