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Finding the Fourth Proportional to 13,201,611.10, 19,802,416.65 and 10,012,965.10

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Solution

The fourth proportional to 13,201,611.10, 19,802,416.65 and 10,012,965.10 is: 15,019,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201,611.10 : 19,802,416.65 = 10,012,965.10 : x
  2. Step 2: Convert to fraction form
    13,201,611.10/19,802,416.65 = 10,012,965.10/x
  3. Step 3: Cross multiply
    13,201,611.10x = 19,802,416.65 × 10,012,965.10
  4. Step 4: Simplify right side
    13,201,611.10x = 198,280,906,812,108.91
  5. Step 5: Solve for x
    x = 198,280,906,812,108.91/13,201,611.10
  6. Step 6: Final answer
    x = 15,019,447.65

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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.