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Finding the Fourth Proportional to 7,006.59, 9,667.95 and 4,021.89

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Solution

The fourth proportional to 7,006.59, 9,667.95 and 4,021.89 is: 5,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,006.59 : 9,667.95 = 4,021.89 : x
  2. Step 2: Convert to fraction form
    7,006.59/9,667.95 = 4,021.89/x
  3. Step 3: Cross multiply
    7,006.59x = 9,667.95 × 4,021.89
  4. Step 4: Simplify right side
    7,006.59x = 38,883,431.43
  5. Step 5: Solve for x
    x = 38,883,431.43/7,006.59
  6. Step 6: Final answer
    x = 5,549.55

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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.