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Finding the Fourth Proportional to 33,280.96, 49,920.48 and 8,656.96

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Solution

The fourth proportional to 33,280.96, 49,920.48 and 8,656.96 is: 12,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280.96 : 49,920.48 = 8,656.96 : x
  2. Step 2: Convert to fraction form
    33,280.96/49,920.48 = 8,656.96/x
  3. Step 3: Cross multiply
    33,280.96x = 49,920.48 × 8,656.96
  4. Step 4: Simplify right side
    33,280.96x = 432,159,598.54
  5. Step 5: Solve for x
    x = 432,159,598.54/33,280.96
  6. Step 6: Final answer
    x = 12,985.19

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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.