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Finding the Fourth Proportional to 61,502, 92,259.48 and 28,216.40

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Solution

The fourth proportional to 61,502, 92,259.48 and 28,216.40 is: 42,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,502 : 92,259.48 = 28,216.40 : x
  2. Step 2: Convert to fraction form
    61,502/92,259.48 = 28,216.40/x
  3. Step 3: Cross multiply
    61,502x = 92,259.48 × 28,216.40
  4. Step 4: Simplify right side
    61,502x = 2,603,230,391.47
  5. Step 5: Solve for x
    x = 2,603,230,391.47/61,502
  6. Step 6: Final answer
    x = 42,327.57

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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.