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Finding the Fourth Proportional to 62,069.81, 93,031.79 and 28,719.41

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Solution

The fourth proportional to 62,069.81, 93,031.79 and 28,719.41 is: 43,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,069.81 : 93,031.79 = 28,719.41 : x
  2. Step 2: Convert to fraction form
    62,069.81/93,031.79 = 28,719.41/x
  3. Step 3: Cross multiply
    62,069.81x = 93,031.79 × 28,719.41
  4. Step 4: Simplify right side
    62,069.81x = 2,671,817,511.29
  5. Step 5: Solve for x
    x = 2,671,817,511.29/62,069.81
  6. Step 6: Final answer
    x = 43,045.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.