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Finding the Fourth Proportional to 18,574.99, 25,631.10 and 10,617.75

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Solution

The fourth proportional to 18,574.99, 25,631.10 and 10,617.75 is: 14,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.99 : 25,631.10 = 10,617.75 : x
  2. Step 2: Convert to fraction form
    18,574.99/25,631.10 = 10,617.75/x
  3. Step 3: Cross multiply
    18,574.99x = 25,631.10 × 10,617.75
  4. Step 4: Simplify right side
    18,574.99x = 272,144,612.03
  5. Step 5: Solve for x
    x = 272,144,612.03/18,574.99
  6. Step 6: Final answer
    x = 14,651.13

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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.