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Finding the Fourth Proportional to 9,264.45, 12,784.93 and 5,015.49

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Solution

The fourth proportional to 9,264.45, 12,784.93 and 5,015.49 is: 6,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,264.45 : 12,784.93 = 5,015.49 : x
  2. Step 2: Convert to fraction form
    9,264.45/12,784.93 = 5,015.49/x
  3. Step 3: Cross multiply
    9,264.45x = 12,784.93 × 5,015.49
  4. Step 4: Simplify right side
    9,264.45x = 64,122,663.49
  5. Step 5: Solve for x
    x = 64,122,663.49/9,264.45
  6. Step 6: Final answer
    x = 6,921.37

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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.