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Finding the Fourth Proportional to 11,900.70, 16,430.99 and 10,637.73

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Solution

The fourth proportional to 11,900.70, 16,430.99 and 10,637.73 is: 14,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.70 : 16,430.99 = 10,637.73 : x
  2. Step 2: Convert to fraction form
    11,900.70/16,430.99 = 10,637.73/x
  3. Step 3: Cross multiply
    11,900.70x = 16,430.99 × 10,637.73
  4. Step 4: Simplify right side
    11,900.70x = 174,788,382.06
  5. Step 5: Solve for x
    x = 174,788,382.06/11,900.70
  6. Step 6: Final answer
    x = 14,687.24

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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.