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Finding the Fourth Proportional to 19,354.49, 26,709.48 and 10,858.49

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Solution

The fourth proportional to 19,354.49, 26,709.48 and 10,858.49 is: 14,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.49 : 26,709.48 = 10,858.49 : x
  2. Step 2: Convert to fraction form
    19,354.49/26,709.48 = 10,858.49/x
  3. Step 3: Cross multiply
    19,354.49x = 26,709.48 × 10,858.49
  4. Step 4: Simplify right side
    19,354.49x = 290,024,621.49
  5. Step 5: Solve for x
    x = 290,024,621.49/19,354.49
  6. Step 6: Final answer
    x = 14,984.88

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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.