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Finding the Fourth Proportional to 86,809.58, 130,219.44 and 33,501.86

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Solution

The fourth proportional to 86,809.58, 130,219.44 and 33,501.86 is: 50,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,809.58 : 130,219.44 = 33,501.86 : x
  2. Step 2: Convert to fraction form
    86,809.58/130,219.44 = 33,501.86/x
  3. Step 3: Cross multiply
    86,809.58x = 130,219.44 × 33,501.86
  4. Step 4: Simplify right side
    86,809.58x = 4,362,593,448.16
  5. Step 5: Solve for x
    x = 4,362,593,448.16/86,809.58
  6. Step 6: Final answer
    x = 50,254.75

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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.