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Finding the Fourth Proportional to 58,756.76, 81,065.01 and 33,260.60

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Solution

The fourth proportional to 58,756.76, 81,065.01 and 33,260.60 is: 45,888.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,756.76 : 81,065.01 = 33,260.60 : x
  2. Step 2: Convert to fraction form
    58,756.76/81,065.01 = 33,260.60/x
  3. Step 3: Cross multiply
    58,756.76x = 81,065.01 × 33,260.60
  4. Step 4: Simplify right side
    58,756.76x = 2,696,270,871.61
  5. Step 5: Solve for x
    x = 2,696,270,871.61/58,756.76
  6. Step 6: Final answer
    x = 45,888.69

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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.