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Finding the Fourth Proportional to 9,904,903.90, 13,892,059.70 and 9,904,903.90

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Solution

The fourth proportional to 9,904,903.90, 13,892,059.70 and 9,904,903.90 is: 13,892,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904,903.90 : 13,892,059.70 = 9,904,903.90 : x
  2. Step 2: Convert to fraction form
    9,904,903.90/13,892,059.70 = 9,904,903.90/x
  3. Step 3: Cross multiply
    9,904,903.90x = 13,892,059.70 × 9,904,903.90
  4. Step 4: Simplify right side
    9,904,903.90x = 137,599,516,301,562.83
  5. Step 5: Solve for x
    x = 137,599,516,301,562.83/9,904,903.90
  6. Step 6: Final answer
    x = 13,892,059.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.