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Finding the Fourth Proportional to 56,539.75, 84,848.51 and 19,603.75

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Solution

The fourth proportional to 56,539.75, 84,848.51 and 19,603.75 is: 29,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,539.75 : 84,848.51 = 19,603.75 : x
  2. Step 2: Convert to fraction form
    56,539.75/84,848.51 = 19,603.75/x
  3. Step 3: Cross multiply
    56,539.75x = 84,848.51 × 19,603.75
  4. Step 4: Simplify right side
    56,539.75x = 1,663,348,977.91
  5. Step 5: Solve for x
    x = 1,663,348,977.91/56,539.75
  6. Step 6: Final answer
    x = 29,419.11

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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.