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Finding the Fourth Proportional to 19,354.39, 26,709.35 and 10,858.39

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Solution

The fourth proportional to 19,354.39, 26,709.35 and 10,858.39 is: 14,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.39 : 26,709.35 = 10,858.39 : x
  2. Step 2: Convert to fraction form
    19,354.39/26,709.35 = 10,858.39/x
  3. Step 3: Cross multiply
    19,354.39x = 26,709.35 × 10,858.39
  4. Step 4: Simplify right side
    19,354.39x = 290,020,417.88
  5. Step 5: Solve for x
    x = 290,020,417.88/19,354.39
  6. Step 6: Final answer
    x = 14,984.74

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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.