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Finding the Fourth Proportional to 7,700.84, 10,627.16 and 4,164.05

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Solution

The fourth proportional to 7,700.84, 10,627.16 and 4,164.05 is: 5,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.84 : 10,627.16 = 4,164.05 : x
  2. Step 2: Convert to fraction form
    7,700.84/10,627.16 = 4,164.05/x
  3. Step 3: Cross multiply
    7,700.84x = 10,627.16 × 4,164.05
  4. Step 4: Simplify right side
    7,700.84x = 44,251,951.64
  5. Step 5: Solve for x
    x = 44,251,951.64/7,700.84
  6. Step 6: Final answer
    x = 5,746.38

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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.