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Finding the Fourth Proportional to 8,873,709.72, 13,311,326.52 and 3,115,948.32

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Solution

The fourth proportional to 8,873,709.72, 13,311,326.52 and 3,115,948.32 is: 4,674,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873,709.72 : 13,311,326.52 = 3,115,948.32 : x
  2. Step 2: Convert to fraction form
    8,873,709.72/13,311,326.52 = 3,115,948.32/x
  3. Step 3: Cross multiply
    8,873,709.72x = 13,311,326.52 × 3,115,948.32
  4. Step 4: Simplify right side
    8,873,709.72x = 41,477,405,506,965.45
  5. Step 5: Solve for x
    x = 41,477,405,506,965.45/8,873,709.72
  6. Step 6: Final answer
    x = 4,674,190.03

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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.