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Finding the Fourth Proportional to 9,102.76, 12,563.02 and 5,124.65

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Solution

The fourth proportional to 9,102.76, 12,563.02 and 5,124.65 is: 7,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,102.76 : 12,563.02 = 5,124.65 : x
  2. Step 2: Convert to fraction form
    9,102.76/12,563.02 = 5,124.65/x
  3. Step 3: Cross multiply
    9,102.76x = 12,563.02 × 5,124.65
  4. Step 4: Simplify right side
    9,102.76x = 64,381,080.44
  5. Step 5: Solve for x
    x = 64,381,080.44/9,102.76
  6. Step 6: Final answer
    x = 7,072.70

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Half scale
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Double scale
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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.