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Finding the Fourth Proportional to 58,707.76, 81,016.70 and 33,557.80

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Solution

The fourth proportional to 58,707.76, 81,016.70 and 33,557.80 is: 46,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,707.76 : 81,016.70 = 33,557.80 : x
  2. Step 2: Convert to fraction form
    58,707.76/81,016.70 = 33,557.80/x
  3. Step 3: Cross multiply
    58,707.76x = 81,016.70 × 33,557.80
  4. Step 4: Simplify right side
    58,707.76x = 2,718,742,215.26
  5. Step 5: Solve for x
    x = 2,718,742,215.26/58,707.76
  6. Step 6: Final answer
    x = 46,309.76

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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.