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Finding the Fourth Proportional to 12,542.92, 18,810.54 and 4,333

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Solution

The fourth proportional to 12,542.92, 18,810.54 and 4,333 is: 6,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.92 : 18,810.54 = 4,333 : x
  2. Step 2: Convert to fraction form
    12,542.92/18,810.54 = 4,333/x
  3. Step 3: Cross multiply
    12,542.92x = 18,810.54 × 4,333
  4. Step 4: Simplify right side
    12,542.92x = 81,506,069.82
  5. Step 5: Solve for x
    x = 81,506,069.82/12,542.92
  6. Step 6: Final answer
    x = 6,498.17

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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.