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Finding the Fourth Proportional to 5,285.93, 7,343.54 and 5,237.79

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Solution

The fourth proportional to 5,285.93, 7,343.54 and 5,237.79 is: 7,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.93 : 7,343.54 = 5,237.79 : x
  2. Step 2: Convert to fraction form
    5,285.93/7,343.54 = 5,237.79/x
  3. Step 3: Cross multiply
    5,285.93x = 7,343.54 × 5,237.79
  4. Step 4: Simplify right side
    5,285.93x = 38,463,892.21
  5. Step 5: Solve for x
    x = 38,463,892.21/5,285.93
  6. Step 6: Final answer
    x = 7,276.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.