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Finding the Fourth Proportional to 7,506.70, 11,259.13 and 3,123.58

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Solution

The fourth proportional to 7,506.70, 11,259.13 and 3,123.58 is: 4,684.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,506.70 : 11,259.13 = 3,123.58 : x
  2. Step 2: Convert to fraction form
    7,506.70/11,259.13 = 3,123.58/x
  3. Step 3: Cross multiply
    7,506.70x = 11,259.13 × 3,123.58
  4. Step 4: Simplify right side
    7,506.70x = 35,168,793.29
  5. Step 5: Solve for x
    x = 35,168,793.29/7,506.70
  6. Step 6: Final answer
    x = 4,684.99

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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.