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Finding the Fourth Proportional to 15,966,999.90, 22,410,486.90 and 15,966,999.90

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Solution

The fourth proportional to 15,966,999.90, 22,410,486.90 and 15,966,999.90 is: 22,410,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,966,999.90 : 22,410,486.90 = 15,966,999.90 : x
  2. Step 2: Convert to fraction form
    15,966,999.90/22,410,486.90 = 15,966,999.90/x
  3. Step 3: Cross multiply
    15,966,999.90x = 22,410,486.90 × 15,966,999.90
  4. Step 4: Simplify right side
    15,966,999.90x = 357,828,242,091,251.31
  5. Step 5: Solve for x
    x = 357,828,242,091,251.31/15,966,999.90
  6. Step 6: Final answer
    x = 22,410,486.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.