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Finding the Fourth Proportional to 18,148.08, 25,037.84 and 11,864.08

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Solution

The fourth proportional to 18,148.08, 25,037.84 and 11,864.08 is: 16,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.08 : 25,037.84 = 11,864.08 : x
  2. Step 2: Convert to fraction form
    18,148.08/25,037.84 = 11,864.08/x
  3. Step 3: Cross multiply
    18,148.08x = 25,037.84 × 11,864.08
  4. Step 4: Simplify right side
    18,148.08x = 297,050,936.79
  5. Step 5: Solve for x
    x = 297,050,936.79/18,148.08
  6. Step 6: Final answer
    x = 16,368.17

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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.