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Finding the Fourth Proportional to 56,480.69, 84,721.65 and 17,038.15

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Solution

The fourth proportional to 56,480.69, 84,721.65 and 17,038.15 is: 25,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,480.69 : 84,721.65 = 17,038.15 : x
  2. Step 2: Convert to fraction form
    56,480.69/84,721.65 = 17,038.15/x
  3. Step 3: Cross multiply
    56,480.69x = 84,721.65 × 17,038.15
  4. Step 4: Simplify right side
    56,480.69x = 1,443,499,905.25
  5. Step 5: Solve for x
    x = 1,443,499,905.25/56,480.69
  6. Step 6: Final answer
    x = 25,557.40

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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.