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Finding the Fourth Proportional to 7,605.90, 10,499.90 and 5,900.58

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Solution

The fourth proportional to 7,605.90, 10,499.90 and 5,900.58 is: 8,145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.90 : 10,499.90 = 5,900.58 : x
  2. Step 2: Convert to fraction form
    7,605.90/10,499.90 = 5,900.58/x
  3. Step 3: Cross multiply
    7,605.90x = 10,499.90 × 5,900.58
  4. Step 4: Simplify right side
    7,605.90x = 61,955,470.44
  5. Step 5: Solve for x
    x = 61,955,470.44/7,605.90
  6. Step 6: Final answer
    x = 8,145.71

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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.