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Finding the Fourth Proportional to 15,763,739.04, 21,754,201.32 and 9,235,806.48

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Solution

The fourth proportional to 15,763,739.04, 21,754,201.32 and 9,235,806.48 is: 12,745,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763,739.04 : 21,754,201.32 = 9,235,806.48 : x
  2. Step 2: Convert to fraction form
    15,763,739.04/21,754,201.32 = 9,235,806.48/x
  3. Step 3: Cross multiply
    15,763,739.04x = 21,754,201.32 × 9,235,806.48
  4. Step 4: Simplify right side
    15,763,739.04x = 200,917,593,518,480.56
  5. Step 5: Solve for x
    x = 200,917,593,518,480.56/15,763,739.04
  6. Step 6: Final answer
    x = 12,745,554.40

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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.