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Finding the Fourth Proportional to 7,653.76, 11,403.72 and 7,150.84

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Solution

The fourth proportional to 7,653.76, 11,403.72 and 7,150.84 is: 10,654.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.76 : 11,403.72 = 7,150.84 : x
  2. Step 2: Convert to fraction form
    7,653.76/11,403.72 = 7,150.84/x
  3. Step 3: Cross multiply
    7,653.76x = 11,403.72 × 7,150.84
  4. Step 4: Simplify right side
    7,653.76x = 81,546,177.12
  5. Step 5: Solve for x
    x = 81,546,177.12/7,653.76
  6. Step 6: Final answer
    x = 10,654.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.