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Finding the Fourth Proportional to 40,698.48, 61,027.64 and 16,998.96

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Solution

The fourth proportional to 40,698.48, 61,027.64 and 16,998.96 is: 25,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.48 : 61,027.64 = 16,998.96 : x
  2. Step 2: Convert to fraction form
    40,698.48/61,027.64 = 16,998.96/x
  3. Step 3: Cross multiply
    40,698.48x = 61,027.64 × 16,998.96
  4. Step 4: Simplify right side
    40,698.48x = 1,037,406,411.25
  5. Step 5: Solve for x
    x = 1,037,406,411.25/40,698.48
  6. Step 6: Final answer
    x = 25,490.05

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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.