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Finding the Fourth Proportional to 4,986.06, 6,865.74 and 4,876.74

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Solution

The fourth proportional to 4,986.06, 6,865.74 and 4,876.74 is: 6,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.06 : 6,865.74 = 4,876.74 : x
  2. Step 2: Convert to fraction form
    4,986.06/6,865.74 = 4,876.74/x
  3. Step 3: Cross multiply
    4,986.06x = 6,865.74 × 4,876.74
  4. Step 4: Simplify right side
    4,986.06x = 33,482,428.89
  5. Step 5: Solve for x
    x = 33,482,428.89/4,986.06
  6. Step 6: Final answer
    x = 6,715.21

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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.