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Finding the Fourth Proportional to 25,291.71, 34,903.08 and 13,961.16

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Solution

The fourth proportional to 25,291.71, 34,903.08 and 13,961.16 is: 19,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,291.71 : 34,903.08 = 13,961.16 : x
  2. Step 2: Convert to fraction form
    25,291.71/34,903.08 = 13,961.16/x
  3. Step 3: Cross multiply
    25,291.71x = 34,903.08 × 13,961.16
  4. Step 4: Simplify right side
    25,291.71x = 487,287,484.37
  5. Step 5: Solve for x
    x = 487,287,484.37/25,291.71
  6. Step 6: Final answer
    x = 19,266.69

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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.