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Finding the Fourth Proportional to 5,745,970.90, 7,929,796.89 and 3,167,646.94

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Solution

The fourth proportional to 5,745,970.90, 7,929,796.89 and 3,167,646.94 is: 4,371,549.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745,970.90 : 7,929,796.89 = 3,167,646.94 : x
  2. Step 2: Convert to fraction form
    5,745,970.90/7,929,796.89 = 3,167,646.94/x
  3. Step 3: Cross multiply
    5,745,970.90x = 7,929,796.89 × 3,167,646.94
  4. Step 4: Simplify right side
    5,745,970.90x = 25,118,796,853,430.02
  5. Step 5: Solve for x
    x = 25,118,796,853,430.02/5,745,970.90
  6. Step 6: Final answer
    x = 4,371,549.61

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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.