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Finding the Fourth Proportional to 7,695.56, 11,545.14 and 3,313.46

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Solution

The fourth proportional to 7,695.56, 11,545.14 and 3,313.46 is: 4,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,695.56 : 11,545.14 = 3,313.46 : x
  2. Step 2: Convert to fraction form
    7,695.56/11,545.14 = 3,313.46/x
  3. Step 3: Cross multiply
    7,695.56x = 11,545.14 × 3,313.46
  4. Step 4: Simplify right side
    7,695.56x = 38,254,359.58
  5. Step 5: Solve for x
    x = 38,254,359.58/7,695.56
  6. Step 6: Final answer
    x = 4,970.97

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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.