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Finding the Fourth Proportional to 68,594.34, 102,897.66 and 18,674.70

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Solution

The fourth proportional to 68,594.34, 102,897.66 and 18,674.70 is: 28,013.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,594.34 : 102,897.66 = 18,674.70 : x
  2. Step 2: Convert to fraction form
    68,594.34/102,897.66 = 18,674.70/x
  3. Step 3: Cross multiply
    68,594.34x = 102,897.66 × 18,674.70
  4. Step 4: Simplify right side
    68,594.34x = 1,921,582,931.20
  5. Step 5: Solve for x
    x = 1,921,582,931.20/68,594.34
  6. Step 6: Final answer
    x = 28,013.72

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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.