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Finding the Fourth Proportional to 16,673.61, 25,009.80 and 4,986.54

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Solution

The fourth proportional to 16,673.61, 25,009.80 and 4,986.54 is: 7,479.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,673.61 : 25,009.80 = 4,986.54 : x
  2. Step 2: Convert to fraction form
    16,673.61/25,009.80 = 4,986.54/x
  3. Step 3: Cross multiply
    16,673.61x = 25,009.80 × 4,986.54
  4. Step 4: Simplify right side
    16,673.61x = 124,712,368.09
  5. Step 5: Solve for x
    x = 124,712,368.09/16,673.61
  6. Step 6: Final answer
    x = 7,479.63

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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.