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Finding the Fourth Proportional to 25,358.61, 34,994.25 and 14,028.74

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Solution

The fourth proportional to 25,358.61, 34,994.25 and 14,028.74 is: 19,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,358.61 : 34,994.25 = 14,028.74 : x
  2. Step 2: Convert to fraction form
    25,358.61/34,994.25 = 14,028.74/x
  3. Step 3: Cross multiply
    25,358.61x = 34,994.25 × 14,028.74
  4. Step 4: Simplify right side
    25,358.61x = 490,925,059.77
  5. Step 5: Solve for x
    x = 490,925,059.77/25,358.61
  6. Step 6: Final answer
    x = 19,359.30

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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.