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Finding the Fourth Proportional to 8,768,728.98, 13,060,629.54 and 8,375,296.59

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Solution

The fourth proportional to 8,768,728.98, 13,060,629.54 and 8,375,296.59 is: 12,474,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768,728.98 : 13,060,629.54 = 8,375,296.59 : x
  2. Step 2: Convert to fraction form
    8,768,728.98/13,060,629.54 = 8,375,296.59/x
  3. Step 3: Cross multiply
    8,768,728.98x = 13,060,629.54 × 8,375,296.59
  4. Step 4: Simplify right side
    8,768,728.98x = 109,386,646,049,615.27
  5. Step 5: Solve for x
    x = 109,386,646,049,615.27/8,768,728.98
  6. Step 6: Final answer
    x = 12,474,629.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.