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Finding the Fourth Proportional to 21,700.53, 32,550.80 and 6,913.98

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Solution

The fourth proportional to 21,700.53, 32,550.80 and 6,913.98 is: 10,370.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.53 : 32,550.80 = 6,913.98 : x
  2. Step 2: Convert to fraction form
    21,700.53/32,550.80 = 6,913.98/x
  3. Step 3: Cross multiply
    21,700.53x = 32,550.80 × 6,913.98
  4. Step 4: Simplify right side
    21,700.53x = 225,055,545.61
  5. Step 5: Solve for x
    x = 225,055,545.61/21,700.53
  6. Step 6: Final answer
    x = 10,370.97

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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.