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Finding the Fourth Proportional to 8,791,968.80, 13,187,953.20 and 2,401,992.20

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Solution

The fourth proportional to 8,791,968.80, 13,187,953.20 and 2,401,992.20 is: 3,602,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,968.80 : 13,187,953.20 = 2,401,992.20 : x
  2. Step 2: Convert to fraction form
    8,791,968.80/13,187,953.20 = 2,401,992.20/x
  3. Step 3: Cross multiply
    8,791,968.80x = 13,187,953.20 × 2,401,992.20
  4. Step 4: Simplify right side
    8,791,968.80x = 31,677,360,720,365.04
  5. Step 5: Solve for x
    x = 31,677,360,720,365.04/8,791,968.80
  6. Step 6: Final answer
    x = 3,602,988.30

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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.