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Finding the Fourth Proportional to 4,991.49, 7,484.85 and 1,703.70

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Solution

The fourth proportional to 4,991.49, 7,484.85 and 1,703.70 is: 2,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.49 : 7,484.85 = 1,703.70 : x
  2. Step 2: Convert to fraction form
    4,991.49/7,484.85 = 1,703.70/x
  3. Step 3: Cross multiply
    4,991.49x = 7,484.85 × 1,703.70
  4. Step 4: Simplify right side
    4,991.49x = 12,751,938.95
  5. Step 5: Solve for x
    x = 12,751,938.95/4,991.49
  6. Step 6: Final answer
    x = 2,554.74

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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.