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Finding the Fourth Proportional to 9,906.61, 14,859.92 and 9,250.51

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Solution

The fourth proportional to 9,906.61, 14,859.92 and 9,250.51 is: 13,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.61 : 14,859.92 = 9,250.51 : x
  2. Step 2: Convert to fraction form
    9,906.61/14,859.92 = 9,250.51/x
  3. Step 3: Cross multiply
    9,906.61x = 14,859.92 × 9,250.51
  4. Step 4: Simplify right side
    9,906.61x = 137,461,838.56
  5. Step 5: Solve for x
    x = 137,461,838.56/9,906.61
  6. Step 6: Final answer
    x = 13,875.77

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Similar ratio
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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.