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Finding the Fourth Proportional to 58,903.40, 81,285.58 and 32,708.51

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Solution

The fourth proportional to 58,903.40, 81,285.58 and 32,708.51 is: 45,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,903.40 : 81,285.58 = 32,708.51 : x
  2. Step 2: Convert to fraction form
    58,903.40/81,285.58 = 32,708.51/x
  3. Step 3: Cross multiply
    58,903.40x = 81,285.58 × 32,708.51
  4. Step 4: Simplify right side
    58,903.40x = 2,658,729,961.58
  5. Step 5: Solve for x
    x = 2,658,729,961.58/58,903.40
  6. Step 6: Final answer
    x = 45,137.12

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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.