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Finding the Fourth Proportional to 10,953,837.20, 16,430,755.80 and 10,953,837.20

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Solution

The fourth proportional to 10,953,837.20, 16,430,755.80 and 10,953,837.20 is: 16,430,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953,837.20 : 16,430,755.80 = 10,953,837.20 : x
  2. Step 2: Convert to fraction form
    10,953,837.20/16,430,755.80 = 10,953,837.20/x
  3. Step 3: Cross multiply
    10,953,837.20x = 16,430,755.80 × 10,953,837.20
  4. Step 4: Simplify right side
    10,953,837.20x = 179,979,824,106,155.75
  5. Step 5: Solve for x
    x = 179,979,824,106,155.75/10,953,837.20
  6. Step 6: Final answer
    x = 16,430,755.80

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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.