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Finding the Fourth Proportional to 15,070,497.10, 20,797,048.77 and 8,194,919.02

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Solution

The fourth proportional to 15,070,497.10, 20,797,048.77 and 8,194,919.02 is: 11,308,859.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070,497.10 : 20,797,048.77 = 8,194,919.02 : x
  2. Step 2: Convert to fraction form
    15,070,497.10/20,797,048.77 = 8,194,919.02/x
  3. Step 3: Cross multiply
    15,070,497.10x = 20,797,048.77 × 8,194,919.02
  4. Step 4: Simplify right side
    15,070,497.10x = 170,430,130,525,140.59
  5. Step 5: Solve for x
    x = 170,430,130,525,140.59/15,070,497.10
  6. Step 6: Final answer
    x = 11,308,859.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.