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Finding the Fourth Proportional to 8,064,602.80, 12,096,904.20 and 5,377,217.20

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Solution

The fourth proportional to 8,064,602.80, 12,096,904.20 and 5,377,217.20 is: 8,065,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064,602.80 : 12,096,904.20 = 5,377,217.20 : x
  2. Step 2: Convert to fraction form
    8,064,602.80/12,096,904.20 = 5,377,217.20/x
  3. Step 3: Cross multiply
    8,064,602.80x = 12,096,904.20 × 5,377,217.20
  4. Step 4: Simplify right side
    8,064,602.80x = 65,047,681,330,992.23
  5. Step 5: Solve for x
    x = 65,047,681,330,992.23/8,064,602.80
  6. Step 6: Final answer
    x = 8,065,825.80

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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.