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Finding the Fourth Proportional to 6,475.60, 9,715.80 and 6,235.60

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Solution

The fourth proportional to 6,475.60, 9,715.80 and 6,235.60 is: 9,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475.60 : 9,715.80 = 6,235.60 : x
  2. Step 2: Convert to fraction form
    6,475.60/9,715.80 = 6,235.60/x
  3. Step 3: Cross multiply
    6,475.60x = 9,715.80 × 6,235.60
  4. Step 4: Simplify right side
    6,475.60x = 60,583,842.48
  5. Step 5: Solve for x
    x = 60,583,842.48/6,475.60
  6. Step 6: Final answer
    x = 9,355.71

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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.