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Finding the Fourth Proportional to 16,893.60, 25,340.40 and 14,123.40

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Solution

The fourth proportional to 16,893.60, 25,340.40 and 14,123.40 is: 21,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,893.60 : 25,340.40 = 14,123.40 : x
  2. Step 2: Convert to fraction form
    16,893.60/25,340.40 = 14,123.40/x
  3. Step 3: Cross multiply
    16,893.60x = 25,340.40 × 14,123.40
  4. Step 4: Simplify right side
    16,893.60x = 357,892,605.36
  5. Step 5: Solve for x
    x = 357,892,605.36/16,893.60
  6. Step 6: Final answer
    x = 21,185.10

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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.