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Finding the Fourth Proportional to 9,239.54, 12,751.09 and 5,702.81

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Solution

The fourth proportional to 9,239.54, 12,751.09 and 5,702.81 is: 7,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.54 : 12,751.09 = 5,702.81 : x
  2. Step 2: Convert to fraction form
    9,239.54/12,751.09 = 5,702.81/x
  3. Step 3: Cross multiply
    9,239.54x = 12,751.09 × 5,702.81
  4. Step 4: Simplify right side
    9,239.54x = 72,716,965.55
  5. Step 5: Solve for x
    x = 72,716,965.55/9,239.54
  6. Step 6: Final answer
    x = 7,870.20

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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.