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Finding the Fourth Proportional to 45,554.52, 68,335.02 and 14,389.50

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Solution

The fourth proportional to 45,554.52, 68,335.02 and 14,389.50 is: 21,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,554.52 : 68,335.02 = 14,389.50 : x
  2. Step 2: Convert to fraction form
    45,554.52/68,335.02 = 14,389.50/x
  3. Step 3: Cross multiply
    45,554.52x = 68,335.02 × 14,389.50
  4. Step 4: Simplify right side
    45,554.52x = 983,306,770.29
  5. Step 5: Solve for x
    x = 983,306,770.29/45,554.52
  6. Step 6: Final answer
    x = 21,585.27

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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.