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Finding the Fourth Proportional to 14,932,728.60, 20,607,199.56 and 8,317,264.11

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Solution

The fourth proportional to 14,932,728.60, 20,607,199.56 and 8,317,264.11 is: 11,477,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,932,728.60 : 20,607,199.56 = 8,317,264.11 : x
  2. Step 2: Convert to fraction form
    14,932,728.60/20,607,199.56 = 8,317,264.11/x
  3. Step 3: Cross multiply
    14,932,728.60x = 20,607,199.56 × 8,317,264.11
  4. Step 4: Simplify right side
    14,932,728.60x = 171,395,521,307,995.78
  5. Step 5: Solve for x
    x = 171,395,521,307,995.78/14,932,728.60
  6. Step 6: Final answer
    x = 11,477,843.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.