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Finding the Fourth Proportional to 7,088.46, 9,781.47 and 3,944.94

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Solution

The fourth proportional to 7,088.46, 9,781.47 and 3,944.94 is: 5,443.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088.46 : 9,781.47 = 3,944.94 : x
  2. Step 2: Convert to fraction form
    7,088.46/9,781.47 = 3,944.94/x
  3. Step 3: Cross multiply
    7,088.46x = 9,781.47 × 3,944.94
  4. Step 4: Simplify right side
    7,088.46x = 38,587,312.26
  5. Step 5: Solve for x
    x = 38,587,312.26/7,088.46
  6. Step 6: Final answer
    x = 5,443.68

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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.