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Finding the Fourth Proportional to 7,558.56, 10,435.90 and 6,759.40

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Solution

The fourth proportional to 7,558.56, 10,435.90 and 6,759.40 is: 9,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,558.56 : 10,435.90 = 6,759.40 : x
  2. Step 2: Convert to fraction form
    7,558.56/10,435.90 = 6,759.40/x
  3. Step 3: Cross multiply
    7,558.56x = 10,435.90 × 6,759.40
  4. Step 4: Simplify right side
    7,558.56x = 70,540,422.46
  5. Step 5: Solve for x
    x = 70,540,422.46/7,558.56
  6. Step 6: Final answer
    x = 9,332.52

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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.