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Finding the Fourth Proportional to 10,817.70, 14,910.93 and 9,068.10

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Solution

The fourth proportional to 10,817.70, 14,910.93 and 9,068.10 is: 12,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.70 : 14,910.93 = 9,068.10 : x
  2. Step 2: Convert to fraction form
    10,817.70/14,910.93 = 9,068.10/x
  3. Step 3: Cross multiply
    10,817.70x = 14,910.93 × 9,068.10
  4. Step 4: Simplify right side
    10,817.70x = 135,213,804.33
  5. Step 5: Solve for x
    x = 135,213,804.33/10,817.70
  6. Step 6: Final answer
    x = 12,499.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.