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Finding the Fourth Proportional to 18,389.54, 25,377.54 and 10,006.04

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Solution

The fourth proportional to 18,389.54, 25,377.54 and 10,006.04 is: 13,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.54 : 25,377.54 = 10,006.04 : x
  2. Step 2: Convert to fraction form
    18,389.54/25,377.54 = 10,006.04/x
  3. Step 3: Cross multiply
    18,389.54x = 25,377.54 × 10,006.04
  4. Step 4: Simplify right side
    18,389.54x = 253,928,680.34
  5. Step 5: Solve for x
    x = 253,928,680.34/18,389.54
  6. Step 6: Final answer
    x = 13,808.32

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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.