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Finding the Fourth Proportional to 10,571,863.90, 15,822,366.45 and 10,571,863.90

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Solution

The fourth proportional to 10,571,863.90, 15,822,366.45 and 10,571,863.90 is: 15,822,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571,863.90 : 15,822,366.45 = 10,571,863.90 : x
  2. Step 2: Convert to fraction form
    10,571,863.90/15,822,366.45 = 10,571,863.90/x
  3. Step 3: Cross multiply
    10,571,863.90x = 15,822,366.45 × 10,571,863.90
  4. Step 4: Simplify right side
    10,571,863.90x = 167,271,904,685,326.16
  5. Step 5: Solve for x
    x = 167,271,904,685,326.16/10,571,863.90
  6. Step 6: Final answer
    x = 15,822,366.45

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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.