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Finding the Fourth Proportional to 59,987.92, 82,783.68 and 33,129.92

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Solution

The fourth proportional to 59,987.92, 82,783.68 and 33,129.92 is: 45,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,987.92 : 82,783.68 = 33,129.92 : x
  2. Step 2: Convert to fraction form
    59,987.92/82,783.68 = 33,129.92/x
  3. Step 3: Cross multiply
    59,987.92x = 82,783.68 × 33,129.92
  4. Step 4: Simplify right side
    59,987.92x = 2,742,616,695.71
  5. Step 5: Solve for x
    x = 2,742,616,695.71/59,987.92
  6. Step 6: Final answer
    x = 45,719.48

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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.