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Finding the Fourth Proportional to 14,651,640.60, 21,977,460.90 and 14,029,657.80

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Solution

The fourth proportional to 14,651,640.60, 21,977,460.90 and 14,029,657.80 is: 21,044,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651,640.60 : 21,977,460.90 = 14,029,657.80 : x
  2. Step 2: Convert to fraction form
    14,651,640.60/21,977,460.90 = 14,029,657.80/x
  3. Step 3: Cross multiply
    14,651,640.60x = 21,977,460.90 × 14,029,657.80
  4. Step 4: Simplify right side
    14,651,640.60x = 308,336,255,739,880
  5. Step 5: Solve for x
    x = 308,336,255,739,880/14,651,640.60
  6. Step 6: Final answer
    x = 21,044,486.70

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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.