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Finding the Fourth Proportional to 4,992.78, 7,484.40 and 1,703.58

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Solution

The fourth proportional to 4,992.78, 7,484.40 and 1,703.58 is: 2,553.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.78 : 7,484.40 = 1,703.58 : x
  2. Step 2: Convert to fraction form
    4,992.78/7,484.40 = 1,703.58/x
  3. Step 3: Cross multiply
    4,992.78x = 7,484.40 × 1,703.58
  4. Step 4: Simplify right side
    4,992.78x = 12,750,274.15
  5. Step 5: Solve for x
    x = 12,750,274.15/4,992.78
  6. Step 6: Final answer
    x = 2,553.74

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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.