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Finding the Fourth Proportional to 61,603.61, 92,404.86 and 19,483.72

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Solution

The fourth proportional to 61,603.61, 92,404.86 and 19,483.72 is: 29,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,603.61 : 92,404.86 = 19,483.72 : x
  2. Step 2: Convert to fraction form
    61,603.61/92,404.86 = 19,483.72/x
  3. Step 3: Cross multiply
    61,603.61x = 92,404.86 × 19,483.72
  4. Step 4: Simplify right side
    61,603.61x = 1,800,390,418.88
  5. Step 5: Solve for x
    x = 1,800,390,418.88/61,603.61
  6. Step 6: Final answer
    x = 29,225.40

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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.