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Finding the Fourth Proportional to 5,621.15, 7,759.85 and 5,088.07

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Solution

The fourth proportional to 5,621.15, 7,759.85 and 5,088.07 is: 7,023.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.15 : 7,759.85 = 5,088.07 : x
  2. Step 2: Convert to fraction form
    5,621.15/7,759.85 = 5,088.07/x
  3. Step 3: Cross multiply
    5,621.15x = 7,759.85 × 5,088.07
  4. Step 4: Simplify right side
    5,621.15x = 39,482,644.25
  5. Step 5: Solve for x
    x = 39,482,644.25/5,621.15
  6. Step 6: Final answer
    x = 7,023.94

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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.