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Finding the Fourth Proportional to 7,897,995.10, 11,089,079.60 and 7,897,995.10

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Solution

The fourth proportional to 7,897,995.10, 11,089,079.60 and 7,897,995.10 is: 11,089,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897,995.10 : 11,089,079.60 = 7,897,995.10 : x
  2. Step 2: Convert to fraction form
    7,897,995.10/11,089,079.60 = 7,897,995.10/x
  3. Step 3: Cross multiply
    7,897,995.10x = 11,089,079.60 × 7,897,995.10
  4. Step 4: Simplify right side
    7,897,995.10x = 87,581,496,344,309.95
  5. Step 5: Solve for x
    x = 87,581,496,344,309.95/7,897,995.10
  6. Step 6: Final answer
    x = 11,089,079.60

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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.