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Finding the Fourth Proportional to 7,860.92, 10,848.20 and 4,324.10

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Solution

The fourth proportional to 7,860.92, 10,848.20 and 4,324.10 is: 5,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.92 : 10,848.20 = 4,324.10 : x
  2. Step 2: Convert to fraction form
    7,860.92/10,848.20 = 4,324.10/x
  3. Step 3: Cross multiply
    7,860.92x = 10,848.20 × 4,324.10
  4. Step 4: Simplify right side
    7,860.92x = 46,908,625.76
  5. Step 5: Solve for x
    x = 46,908,625.76/7,860.92
  6. Step 6: Final answer
    x = 5,967.32

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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.