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Finding the Fourth Proportional to 30,893.94, 42,633.54 and 16,746.78

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Solution

The fourth proportional to 30,893.94, 42,633.54 and 16,746.78 is: 23,110.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,893.94 : 42,633.54 = 16,746.78 : x
  2. Step 2: Convert to fraction form
    30,893.94/42,633.54 = 16,746.78/x
  3. Step 3: Cross multiply
    30,893.94x = 42,633.54 × 16,746.78
  4. Step 4: Simplify right side
    30,893.94x = 713,974,515.00
  5. Step 5: Solve for x
    x = 713,974,515.00/30,893.94
  6. Step 6: Final answer
    x = 23,110.50

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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.