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Finding the Fourth Proportional to 18,856.50, 26,022.78 and 10,473

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Solution

The fourth proportional to 18,856.50, 26,022.78 and 10,473 is: 14,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.50 : 26,022.78 = 10,473 : x
  2. Step 2: Convert to fraction form
    18,856.50/26,022.78 = 10,473/x
  3. Step 3: Cross multiply
    18,856.50x = 26,022.78 × 10,473
  4. Step 4: Simplify right side
    18,856.50x = 272,536,574.94
  5. Step 5: Solve for x
    x = 272,536,574.94/18,856.50
  6. Step 6: Final answer
    x = 14,453.19

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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.