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Finding the Fourth Proportional to 8,397,060.80, 12,576,928.80 and 7,277,316.80

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Solution

The fourth proportional to 8,397,060.80, 12,576,928.80 and 7,277,316.80 is: 10,899,801.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397,060.80 : 12,576,928.80 = 7,277,316.80 : x
  2. Step 2: Convert to fraction form
    8,397,060.80/12,576,928.80 = 7,277,316.80/x
  3. Step 3: Cross multiply
    8,397,060.80x = 12,576,928.80 × 7,277,316.80
  4. Step 4: Simplify right side
    8,397,060.80x = 91,526,295,248,643.84
  5. Step 5: Solve for x
    x = 91,526,295,248,643.84/8,397,060.80
  6. Step 6: Final answer
    x = 10,899,801.42

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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.