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Finding the Fourth Proportional to 53,599.92, 80,412.12 and 18,539.54

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Solution

The fourth proportional to 53,599.92, 80,412.12 and 18,539.54 is: 27,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,599.92 : 80,412.12 = 18,539.54 : x
  2. Step 2: Convert to fraction form
    53,599.92/80,412.12 = 18,539.54/x
  3. Step 3: Cross multiply
    53,599.92x = 80,412.12 × 18,539.54
  4. Step 4: Simplify right side
    53,599.92x = 1,490,803,313.16
  5. Step 5: Solve for x
    x = 1,490,803,313.16/53,599.92
  6. Step 6: Final answer
    x = 27,813.54

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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.