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Finding the Fourth Proportional to 15,946,685.80, 23,920,028.80 and 9,118,469.30

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Solution

The fourth proportional to 15,946,685.80, 23,920,028.80 and 9,118,469.30 is: 13,677,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,946,685.80 : 23,920,028.80 = 9,118,469.30 : x
  2. Step 2: Convert to fraction form
    15,946,685.80/23,920,028.80 = 9,118,469.30/x
  3. Step 3: Cross multiply
    15,946,685.80x = 23,920,028.80 × 9,118,469.30
  4. Step 4: Simplify right side
    15,946,685.80x = 218,114,048,125,519.50
  5. Step 5: Solve for x
    x = 218,114,048,125,519.50/15,946,685.80
  6. Step 6: Final answer
    x = 13,677,704.00

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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.