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Finding the Fourth Proportional to 61,823.88, 92,612.16 and 28,498.32

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Solution

The fourth proportional to 61,823.88, 92,612.16 and 28,498.32 is: 42,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,823.88 : 92,612.16 = 28,498.32 : x
  2. Step 2: Convert to fraction form
    61,823.88/92,612.16 = 28,498.32/x
  3. Step 3: Cross multiply
    61,823.88x = 92,612.16 × 28,498.32
  4. Step 4: Simplify right side
    61,823.88x = 2,639,290,971.57
  5. Step 5: Solve for x
    x = 2,639,290,971.57/61,823.88
  6. Step 6: Final answer
    x = 42,690.48

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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.