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Finding the Fourth Proportional to 10,998.65, 16,492.50 and 4,423.07

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Solution

The fourth proportional to 10,998.65, 16,492.50 and 4,423.07 is: 6,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.65 : 16,492.50 = 4,423.07 : x
  2. Step 2: Convert to fraction form
    10,998.65/16,492.50 = 4,423.07/x
  3. Step 3: Cross multiply
    10,998.65x = 16,492.50 × 4,423.07
  4. Step 4: Simplify right side
    10,998.65x = 72,947,481.98
  5. Step 5: Solve for x
    x = 72,947,481.98/10,998.65
  6. Step 6: Final answer
    x = 6,632.40

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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.