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Finding the Fourth Proportional to 6,886.70, 9,503.68 and 4,054.18

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Solution

The fourth proportional to 6,886.70, 9,503.68 and 4,054.18 is: 5,594.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.70 : 9,503.68 = 4,054.18 : x
  2. Step 2: Convert to fraction form
    6,886.70/9,503.68 = 4,054.18/x
  3. Step 3: Cross multiply
    6,886.70x = 9,503.68 × 4,054.18
  4. Step 4: Simplify right side
    6,886.70x = 38,529,629.38
  5. Step 5: Solve for x
    x = 38,529,629.38/6,886.70
  6. Step 6: Final answer
    x = 5,594.79

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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.