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Finding the Fourth Proportional to 8,502.60, 11,739.31 and 7,603.54

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Solution

The fourth proportional to 8,502.60, 11,739.31 and 7,603.54 is: 10,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.60 : 11,739.31 = 7,603.54 : x
  2. Step 2: Convert to fraction form
    8,502.60/11,739.31 = 7,603.54/x
  3. Step 3: Cross multiply
    8,502.60x = 11,739.31 × 7,603.54
  4. Step 4: Simplify right side
    8,502.60x = 89,260,333.42
  5. Step 5: Solve for x
    x = 89,260,333.42/8,502.60
  6. Step 6: Final answer
    x = 10,498.00

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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.