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Finding the Fourth Proportional to 58,698.25, 81,003.32 and 31,840.77

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Solution

The fourth proportional to 58,698.25, 81,003.32 and 31,840.77 is: 43,940.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,698.25 : 81,003.32 = 31,840.77 : x
  2. Step 2: Convert to fraction form
    58,698.25/81,003.32 = 31,840.77/x
  3. Step 3: Cross multiply
    58,698.25x = 81,003.32 × 31,840.77
  4. Step 4: Simplify right side
    58,698.25x = 2,579,208,081.36
  5. Step 5: Solve for x
    x = 2,579,208,081.36/58,698.25
  6. Step 6: Final answer
    x = 43,940.12

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1.5x scale

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.