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Finding the Fourth Proportional to 4,757.72, 6,550.74 and 4,320.32

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Solution

The fourth proportional to 4,757.72, 6,550.74 and 4,320.32 is: 5,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.72 : 6,550.74 = 4,320.32 : x
  2. Step 2: Convert to fraction form
    4,757.72/6,550.74 = 4,320.32/x
  3. Step 3: Cross multiply
    4,757.72x = 6,550.74 × 4,320.32
  4. Step 4: Simplify right side
    4,757.72x = 28,301,260.28
  5. Step 5: Solve for x
    x = 28,301,260.28/4,757.72
  6. Step 6: Final answer
    x = 5,948.50

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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.