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Finding the Fourth Proportional to 7,048.36, 9,715.46 and 5,553.96

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Solution

The fourth proportional to 7,048.36, 9,715.46 and 5,553.96 is: 7,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.36 : 9,715.46 = 5,553.96 : x
  2. Step 2: Convert to fraction form
    7,048.36/9,715.46 = 5,553.96/x
  3. Step 3: Cross multiply
    7,048.36x = 9,715.46 × 5,553.96
  4. Step 4: Simplify right side
    7,048.36x = 53,959,276.22
  5. Step 5: Solve for x
    x = 53,959,276.22/7,048.36
  6. Step 6: Final answer
    x = 7,655.58

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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.