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Finding the Fourth Proportional to 10,658,978.40, 14,714,193.84 and 6,796,691.04

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Solution

The fourth proportional to 10,658,978.40, 14,714,193.84 and 6,796,691.04 is: 9,382,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,658,978.40 : 14,714,193.84 = 6,796,691.04 : x
  2. Step 2: Convert to fraction form
    10,658,978.40/14,714,193.84 = 6,796,691.04/x
  3. Step 3: Cross multiply
    10,658,978.40x = 14,714,193.84 × 6,796,691.04
  4. Step 4: Simplify right side
    10,658,978.40x = 100,007,829,433,151.19
  5. Step 5: Solve for x
    x = 100,007,829,433,151.19/10,658,978.40
  6. Step 6: Final answer
    x = 9,382,496.68

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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.