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Finding the Fourth Proportional to 9,048.57, 13,558.06 and 8,702.58

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Solution

The fourth proportional to 9,048.57, 13,558.06 and 8,702.58 is: 13,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,048.57 : 13,558.06 = 8,702.58 : x
  2. Step 2: Convert to fraction form
    9,048.57/13,558.06 = 8,702.58/x
  3. Step 3: Cross multiply
    9,048.57x = 13,558.06 × 8,702.58
  4. Step 4: Simplify right side
    9,048.57x = 117,990,114.14
  5. Step 5: Solve for x
    x = 117,990,114.14/9,048.57
  6. Step 6: Final answer
    x = 13,039.64

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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.