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Finding the Fourth Proportional to 18,864.30, 26,448.90 and 18,864.30

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Solution

The fourth proportional to 18,864.30, 26,448.90 and 18,864.30 is: 26,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.30 : 26,448.90 = 18,864.30 : x
  2. Step 2: Convert to fraction form
    18,864.30/26,448.90 = 18,864.30/x
  3. Step 3: Cross multiply
    18,864.30x = 26,448.90 × 18,864.30
  4. Step 4: Simplify right side
    18,864.30x = 498,939,984.27
  5. Step 5: Solve for x
    x = 498,939,984.27/18,864.30
  6. Step 6: Final answer
    x = 26,448.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.