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Finding the Fourth Proportional to 86,053.62, 129,030.30 and 33,401.59

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Solution

The fourth proportional to 86,053.62, 129,030.30 and 33,401.59 is: 50,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,053.62 : 129,030.30 = 33,401.59 : x
  2. Step 2: Convert to fraction form
    86,053.62/129,030.30 = 33,401.59/x
  3. Step 3: Cross multiply
    86,053.62x = 129,030.30 × 33,401.59
  4. Step 4: Simplify right side
    86,053.62x = 4,309,817,178.18
  5. Step 5: Solve for x
    x = 4,309,817,178.18/86,053.62
  6. Step 6: Final answer
    x = 50,082.93

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1.5x scale

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.