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Finding the Fourth Proportional to 17,311,101.60, 25,966,652.40 and 7,212,410.40

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Solution

The fourth proportional to 17,311,101.60, 25,966,652.40 and 7,212,410.40 is: 10,818,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,311,101.60 : 25,966,652.40 = 7,212,410.40 : x
  2. Step 2: Convert to fraction form
    17,311,101.60/25,966,652.40 = 7,212,410.40/x
  3. Step 3: Cross multiply
    17,311,101.60x = 25,966,652.40 × 7,212,410.40
  4. Step 4: Simplify right side
    17,311,101.60x = 187,282,153,822,944.97
  5. Step 5: Solve for x
    x = 187,282,153,822,944.97/17,311,101.60
  6. Step 6: Final answer
    x = 10,818,615.60

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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.