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Finding the Fourth Proportional to 7,384.60, 10,204.50 and 5,710.60

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Solution

The fourth proportional to 7,384.60, 10,204.50 and 5,710.60 is: 7,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.60 : 10,204.50 = 5,710.60 : x
  2. Step 2: Convert to fraction form
    7,384.60/10,204.50 = 5,710.60/x
  3. Step 3: Cross multiply
    7,384.60x = 10,204.50 × 5,710.60
  4. Step 4: Simplify right side
    7,384.60x = 58,273,817.70
  5. Step 5: Solve for x
    x = 58,273,817.70/7,384.60
  6. Step 6: Final answer
    x = 7,891.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.