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Finding the Fourth Proportional to 3,658,657.80, 5,487,986.70 and 3,588,673.80

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Solution

The fourth proportional to 3,658,657.80, 5,487,986.70 and 3,588,673.80 is: 5,383,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658,657.80 : 5,487,986.70 = 3,588,673.80 : x
  2. Step 2: Convert to fraction form
    3,658,657.80/5,487,986.70 = 3,588,673.80/x
  3. Step 3: Cross multiply
    3,658,657.80x = 5,487,986.70 × 3,588,673.80
  4. Step 4: Simplify right side
    3,658,657.80x = 19,694,594,085,038.46
  5. Step 5: Solve for x
    x = 19,694,594,085,038.46/3,658,657.80
  6. Step 6: Final answer
    x = 5,383,010.70

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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.