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Finding the Fourth Proportional to 6,521,762.78, 8,999,594.06 and 3,621,003.74

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Solution

The fourth proportional to 6,521,762.78, 8,999,594.06 and 3,621,003.74 is: 4,996,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521,762.78 : 8,999,594.06 = 3,621,003.74 : x
  2. Step 2: Convert to fraction form
    6,521,762.78/8,999,594.06 = 3,621,003.74/x
  3. Step 3: Cross multiply
    6,521,762.78x = 8,999,594.06 × 3,621,003.74
  4. Step 4: Simplify right side
    6,521,762.78x = 32,587,563,749,741.79
  5. Step 5: Solve for x
    x = 32,587,563,749,741.79/6,521,762.78
  6. Step 6: Final answer
    x = 4,996,741.66

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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.