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Finding the Fourth Proportional to 7,131.13, 9,836.32 and 4,574.84

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Solution

The fourth proportional to 7,131.13, 9,836.32 and 4,574.84 is: 6,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.13 : 9,836.32 = 4,574.84 : x
  2. Step 2: Convert to fraction form
    7,131.13/9,836.32 = 4,574.84/x
  3. Step 3: Cross multiply
    7,131.13x = 9,836.32 × 4,574.84
  4. Step 4: Simplify right side
    7,131.13x = 44,999,590.19
  5. Step 5: Solve for x
    x = 44,999,590.19/7,131.13
  6. Step 6: Final answer
    x = 6,310.30

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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.