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Finding the Fourth Proportional to 10,571,858.40, 15,822,358.20 and 10,571,858.40

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Solution

The fourth proportional to 10,571,858.40, 15,822,358.20 and 10,571,858.40 is: 15,822,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571,858.40 : 15,822,358.20 = 10,571,858.40 : x
  2. Step 2: Convert to fraction form
    10,571,858.40/15,822,358.20 = 10,571,858.40/x
  3. Step 3: Cross multiply
    10,571,858.40x = 15,822,358.20 × 10,571,858.40
  4. Step 4: Simplify right side
    10,571,858.40x = 167,271,730,444,478.88
  5. Step 5: Solve for x
    x = 167,271,730,444,478.88/10,571,858.40
  6. Step 6: Final answer
    x = 15,822,358.20

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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.