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Finding the Fourth Proportional to 6,648,148.81, 9,976,710.66 and 2,604,135.21

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Solution

The fourth proportional to 6,648,148.81, 9,976,710.66 and 2,604,135.21 is: 3,907,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648,148.81 : 9,976,710.66 = 2,604,135.21 : x
  2. Step 2: Convert to fraction form
    6,648,148.81/9,976,710.66 = 2,604,135.21/x
  3. Step 3: Cross multiply
    6,648,148.81x = 9,976,710.66 × 2,604,135.21
  4. Step 4: Simplify right side
    6,648,148.81x = 25,980,703,509,688.34
  5. Step 5: Solve for x
    x = 25,980,703,509,688.34/6,648,148.81
  6. Step 6: Final answer
    x = 3,907,960.58

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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.