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Finding the Fourth Proportional to 86,293.54, 129,490.62 and 36,370.54

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Solution

The fourth proportional to 86,293.54, 129,490.62 and 36,370.54 is: 54,577.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,293.54 : 129,490.62 = 36,370.54 : x
  2. Step 2: Convert to fraction form
    86,293.54/129,490.62 = 36,370.54/x
  3. Step 3: Cross multiply
    86,293.54x = 129,490.62 × 36,370.54
  4. Step 4: Simplify right side
    86,293.54x = 4,709,643,774.33
  5. Step 5: Solve for x
    x = 4,709,643,774.33/86,293.54
  6. Step 6: Final answer
    x = 54,577.01

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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.