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Finding the Fourth Proportional to 33,312.57, 49,968.84 and 8,688.57

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Solution

The fourth proportional to 33,312.57, 49,968.84 and 8,688.57 is: 13,032.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,312.57 : 49,968.84 = 8,688.57 : x
  2. Step 2: Convert to fraction form
    33,312.57/49,968.84 = 8,688.57/x
  3. Step 3: Cross multiply
    33,312.57x = 49,968.84 × 8,688.57
  4. Step 4: Simplify right side
    33,312.57x = 434,157,764.16
  5. Step 5: Solve for x
    x = 434,157,764.16/33,312.57
  6. Step 6: Final answer
    x = 13,032.85

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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.