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Finding the Fourth Proportional to 10,998.98, 16,495.93 and 6,557.90

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Solution

The fourth proportional to 10,998.98, 16,495.93 and 6,557.90 is: 9,835.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.98 : 16,495.93 = 6,557.90 : x
  2. Step 2: Convert to fraction form
    10,998.98/16,495.93 = 6,557.90/x
  3. Step 3: Cross multiply
    10,998.98x = 16,495.93 × 6,557.90
  4. Step 4: Simplify right side
    10,998.98x = 108,178,659.35
  5. Step 5: Solve for x
    x = 108,178,659.35/10,998.98
  6. Step 6: Final answer
    x = 9,835.34

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1.5x scale

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.