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Finding the Fourth Proportional to 7,037.52, 9,712.04 and 3,893.64

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Solution

The fourth proportional to 7,037.52, 9,712.04 and 3,893.64 is: 5,373.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,037.52 : 9,712.04 = 3,893.64 : x
  2. Step 2: Convert to fraction form
    7,037.52/9,712.04 = 3,893.64/x
  3. Step 3: Cross multiply
    7,037.52x = 9,712.04 × 3,893.64
  4. Step 4: Simplify right side
    7,037.52x = 37,815,187.43
  5. Step 5: Solve for x
    x = 37,815,187.43/7,037.52
  6. Step 6: Final answer
    x = 5,373.37

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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.