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Finding the Fourth Proportional to 7,307,688.60, 10,247,560.20 and 7,307,688.60

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Solution

The fourth proportional to 7,307,688.60, 10,247,560.20 and 7,307,688.60 is: 10,247,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,307,688.60 : 10,247,560.20 = 7,307,688.60 : x
  2. Step 2: Convert to fraction form
    7,307,688.60/10,247,560.20 = 7,307,688.60/x
  3. Step 3: Cross multiply
    7,307,688.60x = 10,247,560.20 × 7,307,688.60
  4. Step 4: Simplify right side
    7,307,688.60x = 74,885,978,851,353.70
  5. Step 5: Solve for x
    x = 74,885,978,851,353.70/7,307,688.60
  6. Step 6: Final answer
    x = 10,247,560.20

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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.