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Finding the Fourth Proportional to 17,628,916.20, 26,443,374.30 and 10,056,647.40

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Solution

The fourth proportional to 17,628,916.20, 26,443,374.30 and 10,056,647.40 is: 15,084,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,628,916.20 : 26,443,374.30 = 10,056,647.40 : x
  2. Step 2: Convert to fraction form
    17,628,916.20/26,443,374.30 = 10,056,647.40/x
  3. Step 3: Cross multiply
    17,628,916.20x = 26,443,374.30 × 10,056,647.40
  4. Step 4: Simplify right side
    17,628,916.20x = 265,931,691,401,321.84
  5. Step 5: Solve for x
    x = 265,931,691,401,321.84/17,628,916.20
  6. Step 6: Final answer
    x = 15,084,971.10

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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.