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Finding the Fourth Proportional to 8,543.70, 11,790.02 and 5,006.83

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Solution

The fourth proportional to 8,543.70, 11,790.02 and 5,006.83 is: 6,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.70 : 11,790.02 = 5,006.83 : x
  2. Step 2: Convert to fraction form
    8,543.70/11,790.02 = 5,006.83/x
  3. Step 3: Cross multiply
    8,543.70x = 11,790.02 × 5,006.83
  4. Step 4: Simplify right side
    8,543.70x = 59,030,625.84
  5. Step 5: Solve for x
    x = 59,030,625.84/8,543.70
  6. Step 6: Final answer
    x = 6,909.26

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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.