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Finding the Fourth Proportional to 11,461.63, 15,817.62 and 6,984.67

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Solution

The fourth proportional to 11,461.63, 15,817.62 and 6,984.67 is: 9,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,461.63 : 15,817.62 = 6,984.67 : x
  2. Step 2: Convert to fraction form
    11,461.63/15,817.62 = 6,984.67/x
  3. Step 3: Cross multiply
    11,461.63x = 15,817.62 × 6,984.67
  4. Step 4: Simplify right side
    11,461.63x = 110,480,855.89
  5. Step 5: Solve for x
    x = 110,480,855.89/11,461.63
  6. Step 6: Final answer
    x = 9,639.19

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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.