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Finding the Fourth Proportional to 5,256,606.80, 7,884,910.20 and 5,256,606.80

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Solution

The fourth proportional to 5,256,606.80, 7,884,910.20 and 5,256,606.80 is: 7,884,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256,606.80 : 7,884,910.20 = 5,256,606.80 : x
  2. Step 2: Convert to fraction form
    5,256,606.80/7,884,910.20 = 5,256,606.80/x
  3. Step 3: Cross multiply
    5,256,606.80x = 7,884,910.20 × 5,256,606.80
  4. Step 4: Simplify right side
    5,256,606.80x = 41,447,872,574,709.36
  5. Step 5: Solve for x
    x = 41,447,872,574,709.36/5,256,606.80
  6. Step 6: Final answer
    x = 7,884,910.20

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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.