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Finding the Fourth Proportional to 9,015.76, 13,468.97 and 7,539.64

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Solution

The fourth proportional to 9,015.76, 13,468.97 and 7,539.64 is: 11,263.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,015.76 : 13,468.97 = 7,539.64 : x
  2. Step 2: Convert to fraction form
    9,015.76/13,468.97 = 7,539.64/x
  3. Step 3: Cross multiply
    9,015.76x = 13,468.97 × 7,539.64
  4. Step 4: Simplify right side
    9,015.76x = 101,551,184.97
  5. Step 5: Solve for x
    x = 101,551,184.97/9,015.76
  6. Step 6: Final answer
    x = 11,263.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.