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Finding the Fourth Proportional to 7,317,808.92, 10,978,457.31 and 2,525,539.50

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Solution

The fourth proportional to 7,317,808.92, 10,978,457.31 and 2,525,539.50 is: 3,788,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317,808.92 : 10,978,457.31 = 2,525,539.50 : x
  2. Step 2: Convert to fraction form
    7,317,808.92/10,978,457.31 = 2,525,539.50/x
  3. Step 3: Cross multiply
    7,317,808.92x = 10,978,457.31 × 2,525,539.50
  4. Step 4: Simplify right side
    7,317,808.92x = 27,726,527,585,468.75
  5. Step 5: Solve for x
    x = 27,726,527,585,468.75/7,317,808.92
  6. Step 6: Final answer
    x = 3,788,911.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.