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Finding the Fourth Proportional to 9,886.70, 14,815.10 and 4,336.94

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Solution

The fourth proportional to 9,886.70, 14,815.10 and 4,336.94 is: 6,498.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.70 : 14,815.10 = 4,336.94 : x
  2. Step 2: Convert to fraction form
    9,886.70/14,815.10 = 4,336.94/x
  3. Step 3: Cross multiply
    9,886.70x = 14,815.10 × 4,336.94
  4. Step 4: Simplify right side
    9,886.70x = 64,252,199.79
  5. Step 5: Solve for x
    x = 64,252,199.79/9,886.70
  6. Step 6: Final answer
    x = 6,498.85

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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.