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Finding the Fourth Proportional to 11,875.01, 17,815.55 and 3,554.99

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Solution

The fourth proportional to 11,875.01, 17,815.55 and 3,554.99 is: 5,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.01 : 17,815.55 = 3,554.99 : x
  2. Step 2: Convert to fraction form
    11,875.01/17,815.55 = 3,554.99/x
  3. Step 3: Cross multiply
    11,875.01x = 17,815.55 × 3,554.99
  4. Step 4: Simplify right side
    11,875.01x = 63,334,062.05
  5. Step 5: Solve for x
    x = 63,334,062.05/11,875.01
  6. Step 6: Final answer
    x = 5,333.39

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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.