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Finding the Fourth Proportional to 9,763.93, 13,474.05 and 5,287.64

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Solution

The fourth proportional to 9,763.93, 13,474.05 and 5,287.64 is: 7,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763.93 : 13,474.05 = 5,287.64 : x
  2. Step 2: Convert to fraction form
    9,763.93/13,474.05 = 5,287.64/x
  3. Step 3: Cross multiply
    9,763.93x = 13,474.05 × 5,287.64
  4. Step 4: Simplify right side
    9,763.93x = 71,245,925.74
  5. Step 5: Solve for x
    x = 71,245,925.74/9,763.93
  6. Step 6: Final answer
    x = 7,296.85

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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.