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Finding the Fourth Proportional to 40,415.79, 60,631.02 and 16,710.46

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Solution

The fourth proportional to 40,415.79, 60,631.02 and 16,710.46 is: 25,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,415.79 : 60,631.02 = 16,710.46 : x
  2. Step 2: Convert to fraction form
    40,415.79/60,631.02 = 16,710.46/x
  3. Step 3: Cross multiply
    40,415.79x = 60,631.02 × 16,710.46
  4. Step 4: Simplify right side
    40,415.79x = 1,013,172,234.47
  5. Step 5: Solve for x
    x = 1,013,172,234.47/40,415.79
  6. Step 6: Final answer
    x = 25,068.72

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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.