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Finding the Fourth Proportional to 7,239.64, 10,854.12 and 4,893.82

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Solution

The fourth proportional to 7,239.64, 10,854.12 and 4,893.82 is: 7,337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.64 : 10,854.12 = 4,893.82 : x
  2. Step 2: Convert to fraction form
    7,239.64/10,854.12 = 4,893.82/x
  3. Step 3: Cross multiply
    7,239.64x = 10,854.12 × 4,893.82
  4. Step 4: Simplify right side
    7,239.64x = 53,118,109.54
  5. Step 5: Solve for x
    x = 53,118,109.54/7,239.64
  6. Step 6: Final answer
    x = 7,337.12

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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.