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Finding the Fourth Proportional to 86,647.51, 129,975.86 and 24,322.87

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Solution

The fourth proportional to 86,647.51, 129,975.86 and 24,322.87 is: 36,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,647.51 : 129,975.86 = 24,322.87 : x
  2. Step 2: Convert to fraction form
    86,647.51/129,975.86 = 24,322.87/x
  3. Step 3: Cross multiply
    86,647.51x = 129,975.86 × 24,322.87
  4. Step 4: Simplify right side
    86,647.51x = 3,161,385,945.92
  5. Step 5: Solve for x
    x = 3,161,385,945.92/86,647.51
  6. Step 6: Final answer
    x = 36,485.59

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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.