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Finding the Fourth Proportional to 18,071.88, 27,105.06 and 4,925.28

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Solution

The fourth proportional to 18,071.88, 27,105.06 and 4,925.28 is: 7,387.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.88 : 27,105.06 = 4,925.28 : x
  2. Step 2: Convert to fraction form
    18,071.88/27,105.06 = 4,925.28/x
  3. Step 3: Cross multiply
    18,071.88x = 27,105.06 × 4,925.28
  4. Step 4: Simplify right side
    18,071.88x = 133,500,009.92
  5. Step 5: Solve for x
    x = 133,500,009.92/18,071.88
  6. Step 6: Final answer
    x = 7,387.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.