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Finding the Fourth Proportional to 32,666.46, 48,978.63 and 13,958.70

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Solution

The fourth proportional to 32,666.46, 48,978.63 and 13,958.70 is: 20,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,666.46 : 48,978.63 = 13,958.70 : x
  2. Step 2: Convert to fraction form
    32,666.46/48,978.63 = 13,958.70/x
  3. Step 3: Cross multiply
    32,666.46x = 48,978.63 × 13,958.70
  4. Step 4: Simplify right side
    32,666.46x = 683,678,002.58
  5. Step 5: Solve for x
    x = 683,678,002.58/32,666.46
  6. Step 6: Final answer
    x = 20,929.05

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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.