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Finding the Fourth Proportional to 18,417.10, 27,624.95 and 10,972.19

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Solution

The fourth proportional to 18,417.10, 27,624.95 and 10,972.19 is: 16,457.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.10 : 27,624.95 = 10,972.19 : x
  2. Step 2: Convert to fraction form
    18,417.10/27,624.95 = 10,972.19/x
  3. Step 3: Cross multiply
    18,417.10x = 27,624.95 × 10,972.19
  4. Step 4: Simplify right side
    18,417.10x = 303,106,200.14
  5. Step 5: Solve for x
    x = 303,106,200.14/18,417.10
  6. Step 6: Final answer
    x = 16,457.87

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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.