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Finding the Fourth Proportional to 6,935.70, 10,403.55 and 6,525.30

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Solution

The fourth proportional to 6,935.70, 10,403.55 and 6,525.30 is: 9,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,935.70 : 10,403.55 = 6,525.30 : x
  2. Step 2: Convert to fraction form
    6,935.70/10,403.55 = 6,525.30/x
  3. Step 3: Cross multiply
    6,935.70x = 10,403.55 × 6,525.30
  4. Step 4: Simplify right side
    6,935.70x = 67,886,284.82
  5. Step 5: Solve for x
    x = 67,886,284.82/6,935.70
  6. Step 6: Final answer
    x = 9,787.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.