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Finding the Fourth Proportional to 16,392,211.20, 24,588,316.80 and 8,429,587.20

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Solution

The fourth proportional to 16,392,211.20, 24,588,316.80 and 8,429,587.20 is: 12,644,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,392,211.20 : 24,588,316.80 = 8,429,587.20 : x
  2. Step 2: Convert to fraction form
    16,392,211.20/24,588,316.80 = 8,429,587.20/x
  3. Step 3: Cross multiply
    16,392,211.20x = 24,588,316.80 × 8,429,587.20
  4. Step 4: Simplify right side
    16,392,211.20x = 207,269,360,566,824.94
  5. Step 5: Solve for x
    x = 207,269,360,566,824.94/16,392,211.20
  6. Step 6: Final answer
    x = 12,644,380.80

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1.5x scale

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.