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Finding the Fourth Proportional to 25,990.40, 35,866.74 and 14,053.74

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Solution

The fourth proportional to 25,990.40, 35,866.74 and 14,053.74 is: 19,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.40 : 35,866.74 = 14,053.74 : x
  2. Step 2: Convert to fraction form
    25,990.40/35,866.74 = 14,053.74/x
  3. Step 3: Cross multiply
    25,990.40x = 35,866.74 × 14,053.74
  4. Step 4: Simplify right side
    25,990.40x = 504,061,838.61
  5. Step 5: Solve for x
    x = 504,061,838.61/25,990.40
  6. Step 6: Final answer
    x = 19,394.16

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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.