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Finding the Fourth Proportional to 7,010,132.16, 9,673,978.32 and 3,790,868.16

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Solution

The fourth proportional to 7,010,132.16, 9,673,978.32 and 3,790,868.16 is: 5,231,395.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010,132.16 : 9,673,978.32 = 3,790,868.16 : x
  2. Step 2: Convert to fraction form
    7,010,132.16/9,673,978.32 = 3,790,868.16/x
  3. Step 3: Cross multiply
    7,010,132.16x = 9,673,978.32 × 3,790,868.16
  4. Step 4: Simplify right side
    7,010,132.16x = 36,672,776,393,818.30
  5. Step 5: Solve for x
    x = 36,672,776,393,818.30/7,010,132.16
  6. Step 6: Final answer
    x = 5,231,395.86

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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.