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Finding the Fourth Proportional to 61,718.87, 92,508.30 and 28,370.03

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Solution

The fourth proportional to 61,718.87, 92,508.30 and 28,370.03 is: 42,522.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,718.87 : 92,508.30 = 28,370.03 : x
  2. Step 2: Convert to fraction form
    61,718.87/92,508.30 = 28,370.03/x
  3. Step 3: Cross multiply
    61,718.87x = 92,508.30 × 28,370.03
  4. Step 4: Simplify right side
    61,718.87x = 2,624,462,783.71
  5. Step 5: Solve for x
    x = 2,624,462,783.71/61,718.87
  6. Step 6: Final answer
    x = 42,522.86

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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.