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Finding the Fourth Proportional to 10,583,900.80, 15,879,998.40 and 4,193,065.60

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Solution

The fourth proportional to 10,583,900.80, 15,879,998.40 and 4,193,065.60 is: 6,291,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,583,900.80 : 15,879,998.40 = 4,193,065.60 : x
  2. Step 2: Convert to fraction form
    10,583,900.80/15,879,998.40 = 4,193,065.60/x
  3. Step 3: Cross multiply
    10,583,900.80x = 15,879,998.40 × 4,193,065.60
  4. Step 4: Simplify right side
    10,583,900.80x = 66,585,875,019,095.05
  5. Step 5: Solve for x
    x = 66,585,875,019,095.05/10,583,900.80
  6. Step 6: Final answer
    x = 6,291,241.41

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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.