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Finding the Fourth Proportional to 25,957.81, 35,837.34 and 17,020.90

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Solution

The fourth proportional to 25,957.81, 35,837.34 and 17,020.90 is: 23,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,957.81 : 35,837.34 = 17,020.90 : x
  2. Step 2: Convert to fraction form
    25,957.81/35,837.34 = 17,020.90/x
  3. Step 3: Cross multiply
    25,957.81x = 35,837.34 × 17,020.90
  4. Step 4: Simplify right side
    25,957.81x = 609,983,780.41
  5. Step 5: Solve for x
    x = 609,983,780.41/25,957.81
  6. Step 6: Final answer
    x = 23,499.05

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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.