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Finding the Fourth Proportional to 7,087.56, 9,789.03 and 4,725.60

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Solution

The fourth proportional to 7,087.56, 9,789.03 and 4,725.60 is: 6,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.56 : 9,789.03 = 4,725.60 : x
  2. Step 2: Convert to fraction form
    7,087.56/9,789.03 = 4,725.60/x
  3. Step 3: Cross multiply
    7,087.56x = 9,789.03 × 4,725.60
  4. Step 4: Simplify right side
    7,087.56x = 46,259,040.17
  5. Step 5: Solve for x
    x = 46,259,040.17/7,087.56
  6. Step 6: Final answer
    x = 6,526.79

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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.