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Finding the Fourth Proportional to 14,025.84, 19,355.28 and 7,738.08

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Solution

The fourth proportional to 14,025.84, 19,355.28 and 7,738.08 is: 10,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,025.84 : 19,355.28 = 7,738.08 : x
  2. Step 2: Convert to fraction form
    14,025.84/19,355.28 = 7,738.08/x
  3. Step 3: Cross multiply
    14,025.84x = 19,355.28 × 7,738.08
  4. Step 4: Simplify right side
    14,025.84x = 149,772,705.06
  5. Step 5: Solve for x
    x = 149,772,705.06/14,025.84
  6. Step 6: Final answer
    x = 10,678.34

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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.