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Finding the Fourth Proportional to 25,886.71, 35,699.97 and 19,189.02

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Solution

The fourth proportional to 25,886.71, 35,699.97 and 19,189.02 is: 26,463.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.71 : 35,699.97 = 19,189.02 : x
  2. Step 2: Convert to fraction form
    25,886.71/35,699.97 = 19,189.02/x
  3. Step 3: Cross multiply
    25,886.71x = 35,699.97 × 19,189.02
  4. Step 4: Simplify right side
    25,886.71x = 685,047,438.33
  5. Step 5: Solve for x
    x = 685,047,438.33/25,886.71
  6. Step 6: Final answer
    x = 26,463.29

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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.