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Finding the Fourth Proportional to 5,686,988.92, 8,530,483.40 and 1,900,471.80

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Solution

The fourth proportional to 5,686,988.92, 8,530,483.40 and 1,900,471.80 is: 2,850,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686,988.92 : 8,530,483.40 = 1,900,471.80 : x
  2. Step 2: Convert to fraction form
    5,686,988.92/8,530,483.40 = 1,900,471.80/x
  3. Step 3: Cross multiply
    5,686,988.92x = 8,530,483.40 × 1,900,471.80
  4. Step 4: Simplify right side
    5,686,988.92x = 16,211,943,142,068.12
  5. Step 5: Solve for x
    x = 16,211,943,142,068.12/5,686,988.92
  6. Step 6: Final answer
    x = 2,850,707.71

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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.