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Finding the Fourth Proportional to 18,950.63, 28,432.22 and 5,803.11

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Solution

The fourth proportional to 18,950.63, 28,432.22 and 5,803.11 is: 8,706.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.63 : 28,432.22 = 5,803.11 : x
  2. Step 2: Convert to fraction form
    18,950.63/28,432.22 = 5,803.11/x
  3. Step 3: Cross multiply
    18,950.63x = 28,432.22 × 5,803.11
  4. Step 4: Simplify right side
    18,950.63x = 164,995,271.19
  5. Step 5: Solve for x
    x = 164,995,271.19/18,950.63
  6. Step 6: Final answer
    x = 8,706.59

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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.