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Finding the Fourth Proportional to 7,788,015.90, 11,682,023.85 and 5,100,630.30

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Solution

The fourth proportional to 7,788,015.90, 11,682,023.85 and 5,100,630.30 is: 7,650,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788,015.90 : 11,682,023.85 = 5,100,630.30 : x
  2. Step 2: Convert to fraction form
    7,788,015.90/11,682,023.85 = 5,100,630.30/x
  3. Step 3: Cross multiply
    7,788,015.90x = 11,682,023.85 × 5,100,630.30
  4. Step 4: Simplify right side
    7,788,015.90x = 59,585,684,814,632.65
  5. Step 5: Solve for x
    x = 59,585,684,814,632.65/7,788,015.90
  6. Step 6: Final answer
    x = 7,650,945.45

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Double scale
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1.5x scale

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.