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Finding the Fourth Proportional to 15,600,943.20, 23,373,421.20 and 13,361,455.20

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Solution

The fourth proportional to 15,600,943.20, 23,373,421.20 and 13,361,455.20 is: 20,018,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600,943.20 : 23,373,421.20 = 13,361,455.20 : x
  2. Step 2: Convert to fraction form
    15,600,943.20/23,373,421.20 = 13,361,455.20/x
  3. Step 3: Cross multiply
    15,600,943.20x = 23,373,421.20 × 13,361,455.20
  4. Step 4: Simplify right side
    15,600,943.20x = 312,302,920,234,530.19
  5. Step 5: Solve for x
    x = 312,302,920,234,530.19/15,600,943.20
  6. Step 6: Final answer
    x = 20,018,207.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.