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Finding the Fourth Proportional to 32,406.90, 48,610.35 and 28,389.30

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Solution

The fourth proportional to 32,406.90, 48,610.35 and 28,389.30 is: 42,583.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,406.90 : 48,610.35 = 28,389.30 : x
  2. Step 2: Convert to fraction form
    32,406.90/48,610.35 = 28,389.30/x
  3. Step 3: Cross multiply
    32,406.90x = 48,610.35 × 28,389.30
  4. Step 4: Simplify right side
    32,406.90x = 1,380,013,809.26
  5. Step 5: Solve for x
    x = 1,380,013,809.26/32,406.90
  6. Step 6: Final answer
    x = 42,583.95

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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.