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Finding the Fourth Proportional to 8,812,663.66, 13,203,356.76 and 3,683,787.48

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Solution

The fourth proportional to 8,812,663.66, 13,203,356.76 and 3,683,787.48 is: 5,519,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812,663.66 : 13,203,356.76 = 3,683,787.48 : x
  2. Step 2: Convert to fraction form
    8,812,663.66/13,203,356.76 = 3,683,787.48/x
  3. Step 3: Cross multiply
    8,812,663.66x = 13,203,356.76 × 3,683,787.48
  4. Step 4: Simplify right side
    8,812,663.66x = 48,638,360,326,461.37
  5. Step 5: Solve for x
    x = 48,638,360,326,461.37/8,812,663.66
  6. Step 6: Final answer
    x = 5,519,144.06

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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.