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Finding the Fourth Proportional to 9,076,339.60, 12,738,761.90 and 9,076,339.60

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Solution

The fourth proportional to 9,076,339.60, 12,738,761.90 and 9,076,339.60 is: 12,738,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,076,339.60 : 12,738,761.90 = 9,076,339.60 : x
  2. Step 2: Convert to fraction form
    9,076,339.60/12,738,761.90 = 9,076,339.60/x
  3. Step 3: Cross multiply
    9,076,339.60x = 12,738,761.90 × 9,076,339.60
  4. Step 4: Simplify right side
    9,076,339.60x = 115,621,329,087,941.23
  5. Step 5: Solve for x
    x = 115,621,329,087,941.23/9,076,339.60
  6. Step 6: Final answer
    x = 12,738,761.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.