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Finding the Fourth Proportional to 14,643.04, 21,959.04 and 5,280.56

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Solution

The fourth proportional to 14,643.04, 21,959.04 and 5,280.56 is: 7,918.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.04 : 21,959.04 = 5,280.56 : x
  2. Step 2: Convert to fraction form
    14,643.04/21,959.04 = 5,280.56/x
  3. Step 3: Cross multiply
    14,643.04x = 21,959.04 × 5,280.56
  4. Step 4: Simplify right side
    14,643.04x = 115,956,028.26
  5. Step 5: Solve for x
    x = 115,956,028.26/14,643.04
  6. Step 6: Final answer
    x = 7,918.85

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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.