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Finding the Fourth Proportional to 86,328.86, 129,493.28 and 33,026.27

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Solution

The fourth proportional to 86,328.86, 129,493.28 and 33,026.27 is: 49,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,328.86 : 129,493.28 = 33,026.27 : x
  2. Step 2: Convert to fraction form
    86,328.86/129,493.28 = 33,026.27/x
  3. Step 3: Cross multiply
    86,328.86x = 129,493.28 × 33,026.27
  4. Step 4: Simplify right side
    86,328.86x = 4,276,679,463.56
  5. Step 5: Solve for x
    x = 4,276,679,463.56/86,328.86
  6. Step 6: Final answer
    x = 49,539.40

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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.