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Finding the Fourth Proportional to 18,842.88, 28,264.48 and 4,802.92

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Solution

The fourth proportional to 18,842.88, 28,264.48 and 4,802.92 is: 7,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.88 : 28,264.48 = 4,802.92 : x
  2. Step 2: Convert to fraction form
    18,842.88/28,264.48 = 4,802.92/x
  3. Step 3: Cross multiply
    18,842.88x = 28,264.48 × 4,802.92
  4. Step 4: Simplify right side
    18,842.88x = 135,752,036.28
  5. Step 5: Solve for x
    x = 135,752,036.28/18,842.88
  6. Step 6: Final answer
    x = 7,204.42

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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.