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Finding the Fourth Proportional to 5,703.21, 7,869.56 and 3,313.71

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Solution

The fourth proportional to 5,703.21, 7,869.56 and 3,313.71 is: 4,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,703.21 : 7,869.56 = 3,313.71 : x
  2. Step 2: Convert to fraction form
    5,703.21/7,869.56 = 3,313.71/x
  3. Step 3: Cross multiply
    5,703.21x = 7,869.56 × 3,313.71
  4. Step 4: Simplify right side
    5,703.21x = 26,077,423.10
  5. Step 5: Solve for x
    x = 26,077,423.10/5,703.21
  6. Step 6: Final answer
    x = 4,572.41

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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.