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Finding the Fourth Proportional to 9,959.95, 13,744.95 and 5,483.79

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Solution

The fourth proportional to 9,959.95, 13,744.95 and 5,483.79 is: 7,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.95 : 13,744.95 = 5,483.79 : x
  2. Step 2: Convert to fraction form
    9,959.95/13,744.95 = 5,483.79/x
  3. Step 3: Cross multiply
    9,959.95x = 13,744.95 × 5,483.79
  4. Step 4: Simplify right side
    9,959.95x = 75,374,419.36
  5. Step 5: Solve for x
    x = 75,374,419.36/9,959.95
  6. Step 6: Final answer
    x = 7,567.75

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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.