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Finding the Fourth Proportional to 5,312.08, 7,927.96 and 5,173.84

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Solution

The fourth proportional to 5,312.08, 7,927.96 and 5,173.84 is: 7,721.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.08 : 7,927.96 = 5,173.84 : x
  2. Step 2: Convert to fraction form
    5,312.08/7,927.96 = 5,173.84/x
  3. Step 3: Cross multiply
    5,312.08x = 7,927.96 × 5,173.84
  4. Step 4: Simplify right side
    5,312.08x = 41,017,996.57
  5. Step 5: Solve for x
    x = 41,017,996.57/5,312.08
  6. Step 6: Final answer
    x = 7,721.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.