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Finding the Fourth Proportional to 10,650,768.80, 15,976,153.20 and 10,062,903.20

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Solution

The fourth proportional to 10,650,768.80, 15,976,153.20 and 10,062,903.20 is: 15,094,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,650,768.80 : 15,976,153.20 = 10,062,903.20 : x
  2. Step 2: Convert to fraction form
    10,650,768.80/15,976,153.20 = 10,062,903.20/x
  3. Step 3: Cross multiply
    10,650,768.80x = 15,976,153.20 × 10,062,903.20
  4. Step 4: Simplify right side
    10,650,768.80x = 160,766,483,159,970.22
  5. Step 5: Solve for x
    x = 160,766,483,159,970.22/10,650,768.80
  6. Step 6: Final answer
    x = 15,094,354.80

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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.