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Finding the Fourth Proportional to 4,981.92, 6,875.40 and 3,300.48

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Solution

The fourth proportional to 4,981.92, 6,875.40 and 3,300.48 is: 4,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.92 : 6,875.40 = 3,300.48 : x
  2. Step 2: Convert to fraction form
    4,981.92/6,875.40 = 3,300.48/x
  3. Step 3: Cross multiply
    4,981.92x = 6,875.40 × 3,300.48
  4. Step 4: Simplify right side
    4,981.92x = 22,692,120.19
  5. Step 5: Solve for x
    x = 22,692,120.19/4,981.92
  6. Step 6: Final answer
    x = 4,554.89

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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.