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Finding the Fourth Proportional to 7,392.70, 11,094.45 and 5,205.70

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Solution

The fourth proportional to 7,392.70, 11,094.45 and 5,205.70 is: 7,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.70 : 11,094.45 = 5,205.70 : x
  2. Step 2: Convert to fraction form
    7,392.70/11,094.45 = 5,205.70/x
  3. Step 3: Cross multiply
    7,392.70x = 11,094.45 × 5,205.70
  4. Step 4: Simplify right side
    7,392.70x = 57,754,378.37
  5. Step 5: Solve for x
    x = 57,754,378.37/7,392.70
  6. Step 6: Final answer
    x = 7,812.35

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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.