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Finding the Fourth Proportional to 9,264.79, 13,889.05 and 4,813.09

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Solution

The fourth proportional to 9,264.79, 13,889.05 and 4,813.09 is: 7,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,264.79 : 13,889.05 = 4,813.09 : x
  2. Step 2: Convert to fraction form
    9,264.79/13,889.05 = 4,813.09/x
  3. Step 3: Cross multiply
    9,264.79x = 13,889.05 × 4,813.09
  4. Step 4: Simplify right side
    9,264.79x = 66,849,200.91
  5. Step 5: Solve for x
    x = 66,849,200.91/9,264.79
  6. Step 6: Final answer
    x = 7,215.40

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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.