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Finding the Fourth Proportional to 7,699.83, 10,627.41 and 4,865.40

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Solution

The fourth proportional to 7,699.83, 10,627.41 and 4,865.40 is: 6,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.83 : 10,627.41 = 4,865.40 : x
  2. Step 2: Convert to fraction form
    7,699.83/10,627.41 = 4,865.40/x
  3. Step 3: Cross multiply
    7,699.83x = 10,627.41 × 4,865.40
  4. Step 4: Simplify right side
    7,699.83x = 51,706,600.61
  5. Step 5: Solve for x
    x = 51,706,600.61/7,699.83
  6. Step 6: Final answer
    x = 6,715.30

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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.