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Finding the Fourth Proportional to 34,720.32, 47,914.02 and 18,805.08

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Solution

The fourth proportional to 34,720.32, 47,914.02 and 18,805.08 is: 25,951.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,720.32 : 47,914.02 = 18,805.08 : x
  2. Step 2: Convert to fraction form
    34,720.32/47,914.02 = 18,805.08/x
  3. Step 3: Cross multiply
    34,720.32x = 47,914.02 × 18,805.08
  4. Step 4: Simplify right side
    34,720.32x = 901,026,979.22
  5. Step 5: Solve for x
    x = 901,026,979.22/34,720.32
  6. Step 6: Final answer
    x = 25,951.00

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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.