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Finding the Fourth Proportional to 7,135.54, 9,848.72 and 4,151.84

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Solution

The fourth proportional to 7,135.54, 9,848.72 and 4,151.84 is: 5,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.54 : 9,848.72 = 4,151.84 : x
  2. Step 2: Convert to fraction form
    7,135.54/9,848.72 = 4,151.84/x
  3. Step 3: Cross multiply
    7,135.54x = 9,848.72 × 4,151.84
  4. Step 4: Simplify right side
    7,135.54x = 40,890,309.64
  5. Step 5: Solve for x
    x = 40,890,309.64/7,135.54
  6. Step 6: Final answer
    x = 5,730.51

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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.