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Finding the Fourth Proportional to 61,328.51, 84,635.74 and 34,470.93

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Solution

The fourth proportional to 61,328.51, 84,635.74 and 34,470.93 is: 47,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,328.51 : 84,635.74 = 34,470.93 : x
  2. Step 2: Convert to fraction form
    61,328.51/84,635.74 = 34,470.93/x
  3. Step 3: Cross multiply
    61,328.51x = 84,635.74 × 34,470.93
  4. Step 4: Simplify right side
    61,328.51x = 2,917,473,029.51
  5. Step 5: Solve for x
    x = 2,917,473,029.51/61,328.51
  6. Step 6: Final answer
    x = 47,571.24

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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.