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Finding the Fourth Proportional to 19,612.54, 29,395.99 and 9,060.40

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Solution

The fourth proportional to 19,612.54, 29,395.99 and 9,060.40 is: 13,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.54 : 29,395.99 = 9,060.40 : x
  2. Step 2: Convert to fraction form
    19,612.54/29,395.99 = 9,060.40/x
  3. Step 3: Cross multiply
    19,612.54x = 29,395.99 × 9,060.40
  4. Step 4: Simplify right side
    19,612.54x = 266,339,427.80
  5. Step 5: Solve for x
    x = 266,339,427.80/19,612.54
  6. Step 6: Final answer
    x = 13,580.06

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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.