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Finding the Fourth Proportional to 9,886.37, 14,829.08 and 7,117.97

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Solution

The fourth proportional to 9,886.37, 14,829.08 and 7,117.97 is: 10,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.37 : 14,829.08 = 7,117.97 : x
  2. Step 2: Convert to fraction form
    9,886.37/14,829.08 = 7,117.97/x
  3. Step 3: Cross multiply
    9,886.37x = 14,829.08 × 7,117.97
  4. Step 4: Simplify right side
    9,886.37x = 105,552,836.83
  5. Step 5: Solve for x
    x = 105,552,836.83/9,886.37
  6. Step 6: Final answer
    x = 10,676.61

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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.