Home / 16,917.60-25,376.40-7,056.78

Finding the Fourth Proportional to 16,917.60, 25,376.40 and 7,056.78

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Solution

The fourth proportional to 16,917.60, 25,376.40 and 7,056.78 is: 10,585.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917.60 : 25,376.40 = 7,056.78 : x
  2. Step 2: Convert to fraction form
    16,917.60/25,376.40 = 7,056.78/x
  3. Step 3: Cross multiply
    16,917.60x = 25,376.40 × 7,056.78
  4. Step 4: Simplify right side
    16,917.60x = 179,075,671.99
  5. Step 5: Solve for x
    x = 179,075,671.99/16,917.60
  6. Step 6: Final answer
    x = 10,585.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.