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Finding the Fourth Proportional to 7,852,648.80, 11,779,750.80 and 2,734,291.20

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Solution

The fourth proportional to 7,852,648.80, 11,779,750.80 and 2,734,291.20 is: 4,101,707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852,648.80 : 11,779,750.80 = 2,734,291.20 : x
  2. Step 2: Convert to fraction form
    7,852,648.80/11,779,750.80 = 2,734,291.20/x
  3. Step 3: Cross multiply
    7,852,648.80x = 11,779,750.80 × 2,734,291.20
  4. Step 4: Simplify right side
    7,852,648.80x = 32,209,268,950,632.96
  5. Step 5: Solve for x
    x = 32,209,268,950,632.96/7,852,648.80
  6. Step 6: Final answer
    x = 4,101,707.56

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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.