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Finding the Fourth Proportional to 8,505.60, 11,743.45 and 7,606.54

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Solution

The fourth proportional to 8,505.60, 11,743.45 and 7,606.54 is: 10,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.60 : 11,743.45 = 7,606.54 : x
  2. Step 2: Convert to fraction form
    8,505.60/11,743.45 = 7,606.54/x
  3. Step 3: Cross multiply
    8,505.60x = 11,743.45 × 7,606.54
  4. Step 4: Simplify right side
    8,505.60x = 89,327,022.16
  5. Step 5: Solve for x
    x = 89,327,022.16/8,505.60
  6. Step 6: Final answer
    x = 10,502.14

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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.