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Finding the Fourth Proportional to 9,411.57, 14,123.84 and 3,255.57

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Solution

The fourth proportional to 9,411.57, 14,123.84 and 3,255.57 is: 4,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,411.57 : 14,123.84 = 3,255.57 : x
  2. Step 2: Convert to fraction form
    9,411.57/14,123.84 = 3,255.57/x
  3. Step 3: Cross multiply
    9,411.57x = 14,123.84 × 3,255.57
  4. Step 4: Simplify right side
    9,411.57x = 45,981,133.51
  5. Step 5: Solve for x
    x = 45,981,133.51/9,411.57
  6. Step 6: Final answer
    x = 4,885.60

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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.