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Finding the Fourth Proportional to 7,009,707.79, 9,671,895.43 and 5,269,238.52

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Solution

The fourth proportional to 7,009,707.79, 9,671,895.43 and 5,269,238.52 is: 7,270,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009,707.79 : 9,671,895.43 = 5,269,238.52 : x
  2. Step 2: Convert to fraction form
    7,009,707.79/9,671,895.43 = 5,269,238.52/x
  3. Step 3: Cross multiply
    7,009,707.79x = 9,671,895.43 × 5,269,238.52
  4. Step 4: Simplify right side
    7,009,707.79x = 50,963,523,961,167.96
  5. Step 5: Solve for x
    x = 50,963,523,961,167.96/7,009,707.79
  6. Step 6: Final answer
    x = 7,270,420.61

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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.