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Finding the Fourth Proportional to 10,999.45, 16,495.98 and 5,373.64

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Solution

The fourth proportional to 10,999.45, 16,495.98 and 5,373.64 is: 8,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.45 : 16,495.98 = 5,373.64 : x
  2. Step 2: Convert to fraction form
    10,999.45/16,495.98 = 5,373.64/x
  3. Step 3: Cross multiply
    10,999.45x = 16,495.98 × 5,373.64
  4. Step 4: Simplify right side
    10,999.45x = 88,643,457.97
  5. Step 5: Solve for x
    x = 88,643,457.97/10,999.45
  6. Step 6: Final answer
    x = 8,058.90

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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.