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Finding the Fourth Proportional to 33,313.57, 49,970.34 and 8,689.57

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Solution

The fourth proportional to 33,313.57, 49,970.34 and 8,689.57 is: 13,034.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,313.57 : 49,970.34 = 8,689.57 : x
  2. Step 2: Convert to fraction form
    33,313.57/49,970.34 = 8,689.57/x
  3. Step 3: Cross multiply
    33,313.57x = 49,970.34 × 8,689.57
  4. Step 4: Simplify right side
    33,313.57x = 434,220,767.35
  5. Step 5: Solve for x
    x = 434,220,767.35/33,313.57
  6. Step 6: Final answer
    x = 13,034.35

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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.