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Finding the Fourth Proportional to 18,005, 24,846.90 and 10,553

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Solution

The fourth proportional to 18,005, 24,846.90 and 10,553 is: 14,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005 : 24,846.90 = 10,553 : x
  2. Step 2: Convert to fraction form
    18,005/24,846.90 = 10,553/x
  3. Step 3: Cross multiply
    18,005x = 24,846.90 × 10,553
  4. Step 4: Simplify right side
    18,005x = 262,209,335.70
  5. Step 5: Solve for x
    x = 262,209,335.70/18,005
  6. Step 6: Final answer
    x = 14,563.14

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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.