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Finding the Fourth Proportional to 25,381.80, 35,026.10 and 14,051.76

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Solution

The fourth proportional to 25,381.80, 35,026.10 and 14,051.76 is: 19,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.80 : 35,026.10 = 14,051.76 : x
  2. Step 2: Convert to fraction form
    25,381.80/35,026.10 = 14,051.76/x
  3. Step 3: Cross multiply
    25,381.80x = 35,026.10 × 14,051.76
  4. Step 4: Simplify right side
    25,381.80x = 492,178,350.94
  5. Step 5: Solve for x
    x = 492,178,350.94/25,381.80
  6. Step 6: Final answer
    x = 19,390.99

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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.