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Finding the Fourth Proportional to 28,929.15, 43,347.15 and 16,411.95

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Solution

The fourth proportional to 28,929.15, 43,347.15 and 16,411.95 is: 24,591.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.15 : 43,347.15 = 16,411.95 : x
  2. Step 2: Convert to fraction form
    28,929.15/43,347.15 = 16,411.95/x
  3. Step 3: Cross multiply
    28,929.15x = 43,347.15 × 16,411.95
  4. Step 4: Simplify right side
    28,929.15x = 711,411,258.44
  5. Step 5: Solve for x
    x = 711,411,258.44/28,929.15
  6. Step 6: Final answer
    x = 24,591.50

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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.