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Finding the Fourth Proportional to 14,028.60, 21,042.93 and 5,702.74

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Solution

The fourth proportional to 14,028.60, 21,042.93 and 5,702.74 is: 8,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.60 : 21,042.93 = 5,702.74 : x
  2. Step 2: Convert to fraction form
    14,028.60/21,042.93 = 5,702.74/x
  3. Step 3: Cross multiply
    14,028.60x = 21,042.93 × 5,702.74
  4. Step 4: Simplify right side
    14,028.60x = 120,002,358.63
  5. Step 5: Solve for x
    x = 120,002,358.63/14,028.60
  6. Step 6: Final answer
    x = 8,554.12

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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.