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Finding the Fourth Proportional to 4,703.79, 7,057.50 and 2,856.24

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Solution

The fourth proportional to 4,703.79, 7,057.50 and 2,856.24 is: 4,285.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,703.79 : 7,057.50 = 2,856.24 : x
  2. Step 2: Convert to fraction form
    4,703.79/7,057.50 = 2,856.24/x
  3. Step 3: Cross multiply
    4,703.79x = 7,057.50 × 2,856.24
  4. Step 4: Simplify right side
    4,703.79x = 20,157,913.80
  5. Step 5: Solve for x
    x = 20,157,913.80/4,703.79
  6. Step 6: Final answer
    x = 4,285.46

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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.