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Finding the Fourth Proportional to 5,039.42, 7,508.47 and 4,756.47

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Solution

The fourth proportional to 5,039.42, 7,508.47 and 4,756.47 is: 7,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.42 : 7,508.47 = 4,756.47 : x
  2. Step 2: Convert to fraction form
    5,039.42/7,508.47 = 4,756.47/x
  3. Step 3: Cross multiply
    5,039.42x = 7,508.47 × 4,756.47
  4. Step 4: Simplify right side
    5,039.42x = 35,713,812.30
  5. Step 5: Solve for x
    x = 35,713,812.30/5,039.42
  6. Step 6: Final answer
    x = 7,086.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.