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Finding the Fourth Proportional to 77,787.75, 116,681.63 and 22,383.75

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Solution

The fourth proportional to 77,787.75, 116,681.63 and 22,383.75 is: 33,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,787.75 : 116,681.63 = 22,383.75 : x
  2. Step 2: Convert to fraction form
    77,787.75/116,681.63 = 22,383.75/x
  3. Step 3: Cross multiply
    77,787.75x = 116,681.63 × 22,383.75
  4. Step 4: Simplify right side
    77,787.75x = 2,611,772,435.51
  5. Step 5: Solve for x
    x = 2,611,772,435.51/77,787.75
  6. Step 6: Final answer
    x = 33,575.63

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1.5x scale

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.