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Finding the Fourth Proportional to 7,210.77, 9,950.23 and 4,023.82

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Solution

The fourth proportional to 7,210.77, 9,950.23 and 4,023.82 is: 5,552.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.77 : 9,950.23 = 4,023.82 : x
  2. Step 2: Convert to fraction form
    7,210.77/9,950.23 = 4,023.82/x
  3. Step 3: Cross multiply
    7,210.77x = 9,950.23 × 4,023.82
  4. Step 4: Simplify right side
    7,210.77x = 40,037,929.31
  5. Step 5: Solve for x
    x = 40,037,929.31/7,210.77
  6. Step 6: Final answer
    x = 5,552.52

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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.