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Finding the Fourth Proportional to 7,259.87, 10,018.26 and 4,072.77

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Solution

The fourth proportional to 7,259.87, 10,018.26 and 4,072.77 is: 5,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.87 : 10,018.26 = 4,072.77 : x
  2. Step 2: Convert to fraction form
    7,259.87/10,018.26 = 4,072.77/x
  3. Step 3: Cross multiply
    7,259.87x = 10,018.26 × 4,072.77
  4. Step 4: Simplify right side
    7,259.87x = 40,802,068.78
  5. Step 5: Solve for x
    x = 40,802,068.78/7,259.87
  6. Step 6: Final answer
    x = 5,620.22

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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.