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Finding the Fourth Proportional to 33,060.40, 45,623.30 and 18,156.40

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Solution

The fourth proportional to 33,060.40, 45,623.30 and 18,156.40 is: 25,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,060.40 : 45,623.30 = 18,156.40 : x
  2. Step 2: Convert to fraction form
    33,060.40/45,623.30 = 18,156.40/x
  3. Step 3: Cross multiply
    33,060.40x = 45,623.30 × 18,156.40
  4. Step 4: Simplify right side
    33,060.40x = 828,354,884.12
  5. Step 5: Solve for x
    x = 828,354,884.12/33,060.40
  6. Step 6: Final answer
    x = 25,055.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.