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Finding the Fourth Proportional to 6,288,980.67, 8,678,822.72 and 3,572,875.71

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Solution

The fourth proportional to 6,288,980.67, 8,678,822.72 and 3,572,875.71 is: 4,930,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288,980.67 : 8,678,822.72 = 3,572,875.71 : x
  2. Step 2: Convert to fraction form
    6,288,980.67/8,678,822.72 = 3,572,875.71/x
  3. Step 3: Cross multiply
    6,288,980.67x = 8,678,822.72 × 3,572,875.71
  4. Step 4: Simplify right side
    6,288,980.67x = 31,008,354,869,819.75
  5. Step 5: Solve for x
    x = 31,008,354,869,819.75/6,288,980.67
  6. Step 6: Final answer
    x = 4,930,585.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.