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Finding the Fourth Proportional to 10,699.79, 14,769.43 and 7,353.68

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Solution

The fourth proportional to 10,699.79, 14,769.43 and 7,353.68 is: 10,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,699.79 : 14,769.43 = 7,353.68 : x
  2. Step 2: Convert to fraction form
    10,699.79/14,769.43 = 7,353.68/x
  3. Step 3: Cross multiply
    10,699.79x = 14,769.43 × 7,353.68
  4. Step 4: Simplify right side
    10,699.79x = 108,609,662.00
  5. Step 5: Solve for x
    x = 108,609,662.00/10,699.79
  6. Step 6: Final answer
    x = 10,150.63

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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.