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Finding the Fourth Proportional to 14,028.94, 21,037.94 and 5,259.07

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Solution

The fourth proportional to 14,028.94, 21,037.94 and 5,259.07 is: 7,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.94 : 21,037.94 = 5,259.07 : x
  2. Step 2: Convert to fraction form
    14,028.94/21,037.94 = 5,259.07/x
  3. Step 3: Cross multiply
    14,028.94x = 21,037.94 × 5,259.07
  4. Step 4: Simplify right side
    14,028.94x = 110,639,999.12
  5. Step 5: Solve for x
    x = 110,639,999.12/14,028.94
  6. Step 6: Final answer
    x = 7,886.55

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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.