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Finding the Fourth Proportional to 18,395.40, 25,384.92 and 10,011.92

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Solution

The fourth proportional to 18,395.40, 25,384.92 and 10,011.92 is: 13,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395.40 : 25,384.92 = 10,011.92 : x
  2. Step 2: Convert to fraction form
    18,395.40/25,384.92 = 10,011.92/x
  3. Step 3: Cross multiply
    18,395.40x = 25,384.92 × 10,011.92
  4. Step 4: Simplify right side
    18,395.40x = 254,151,788.25
  5. Step 5: Solve for x
    x = 254,151,788.25/18,395.40
  6. Step 6: Final answer
    x = 13,816.05

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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.