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Finding the Fourth Proportional to 10,803.70, 16,217.70 and 5,870.80

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Solution

The fourth proportional to 10,803.70, 16,217.70 and 5,870.80 is: 8,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.70 : 16,217.70 = 5,870.80 : x
  2. Step 2: Convert to fraction form
    10,803.70/16,217.70 = 5,870.80/x
  3. Step 3: Cross multiply
    10,803.70x = 16,217.70 × 5,870.80
  4. Step 4: Simplify right side
    10,803.70x = 95,210,873.16
  5. Step 5: Solve for x
    x = 95,210,873.16/10,803.70
  6. Step 6: Final answer
    x = 8,812.80

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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.