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Finding the Fourth Proportional to 9,562,581.74, 13,195,978.64 and 5,211,574.80

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Solution

The fourth proportional to 9,562,581.74, 13,195,978.64 and 5,211,574.80 is: 7,191,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,562,581.74 : 13,195,978.64 = 5,211,574.80 : x
  2. Step 2: Convert to fraction form
    9,562,581.74/13,195,978.64 = 5,211,574.80/x
  3. Step 3: Cross multiply
    9,562,581.74x = 13,195,978.64 × 5,211,574.80
  4. Step 4: Simplify right side
    9,562,581.74x = 68,771,829,741,562.27
  5. Step 5: Solve for x
    x = 68,771,829,741,562.27/9,562,581.74
  6. Step 6: Final answer
    x = 7,191,763.86

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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.