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Finding the Fourth Proportional to 5,133.40, 7,084.74 and 2,895.40

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Solution

The fourth proportional to 5,133.40, 7,084.74 and 2,895.40 is: 3,996.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.40 : 7,084.74 = 2,895.40 : x
  2. Step 2: Convert to fraction form
    5,133.40/7,084.74 = 2,895.40/x
  3. Step 3: Cross multiply
    5,133.40x = 7,084.74 × 2,895.40
  4. Step 4: Simplify right side
    5,133.40x = 20,513,156.20
  5. Step 5: Solve for x
    x = 20,513,156.20/5,133.40
  6. Step 6: Final answer
    x = 3,996.02

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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.