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Finding the Fourth Proportional to 9,283.53, 12,813.13 and 5,508.79

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Solution

The fourth proportional to 9,283.53, 12,813.13 and 5,508.79 is: 7,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,283.53 : 12,813.13 = 5,508.79 : x
  2. Step 2: Convert to fraction form
    9,283.53/12,813.13 = 5,508.79/x
  3. Step 3: Cross multiply
    9,283.53x = 12,813.13 × 5,508.79
  4. Step 4: Simplify right side
    9,283.53x = 70,584,842.41
  5. Step 5: Solve for x
    x = 70,584,842.41/9,283.53
  6. Step 6: Final answer
    x = 7,603.23

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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.