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Finding the Fourth Proportional to 7,842,567.72, 10,823,759.55 and 4,404,809.06

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Solution

The fourth proportional to 7,842,567.72, 10,823,759.55 and 4,404,809.06 is: 6,079,207.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842,567.72 : 10,823,759.55 = 4,404,809.06 : x
  2. Step 2: Convert to fraction form
    7,842,567.72/10,823,759.55 = 4,404,809.06/x
  3. Step 3: Cross multiply
    7,842,567.72x = 10,823,759.55 × 4,404,809.06
  4. Step 4: Simplify right side
    7,842,567.72x = 47,676,594,052,958.68
  5. Step 5: Solve for x
    x = 47,676,594,052,958.68/7,842,567.72
  6. Step 6: Final answer
    x = 6,079,207.19

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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.