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Finding the Fourth Proportional to 18,370.48, 27,539.52 and 7,970.08

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Solution

The fourth proportional to 18,370.48, 27,539.52 and 7,970.08 is: 11,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.48 : 27,539.52 = 7,970.08 : x
  2. Step 2: Convert to fraction form
    18,370.48/27,539.52 = 7,970.08/x
  3. Step 3: Cross multiply
    18,370.48x = 27,539.52 × 7,970.08
  4. Step 4: Simplify right side
    18,370.48x = 219,492,177.56
  5. Step 5: Solve for x
    x = 219,492,177.56/18,370.48
  6. Step 6: Final answer
    x = 11,948.09

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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.