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Finding the Fourth Proportional to 8,707.32, 13,066.47 and 3,709.68

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Solution

The fourth proportional to 8,707.32, 13,066.47 and 3,709.68 is: 5,566.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.32 : 13,066.47 = 3,709.68 : x
  2. Step 2: Convert to fraction form
    8,707.32/13,066.47 = 3,709.68/x
  3. Step 3: Cross multiply
    8,707.32x = 13,066.47 × 3,709.68
  4. Step 4: Simplify right side
    8,707.32x = 48,472,422.43
  5. Step 5: Solve for x
    x = 48,472,422.43/8,707.32
  6. Step 6: Final answer
    x = 5,566.86

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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.