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Finding the Fourth Proportional to 7,210.54, 9,950.56 and 4,066.74

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Solution

The fourth proportional to 7,210.54, 9,950.56 and 4,066.74 is: 5,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.54 : 9,950.56 = 4,066.74 : x
  2. Step 2: Convert to fraction form
    7,210.54/9,950.56 = 4,066.74/x
  3. Step 3: Cross multiply
    7,210.54x = 9,950.56 × 4,066.74
  4. Step 4: Simplify right side
    7,210.54x = 40,466,340.37
  5. Step 5: Solve for x
    x = 40,466,340.37/7,210.54
  6. Step 6: Final answer
    x = 5,612.11

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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.