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Finding the Fourth Proportional to 7,850, 10,832.46 and 4,312.48

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Solution

The fourth proportional to 7,850, 10,832.46 and 4,312.48 is: 5,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850 : 10,832.46 = 4,312.48 : x
  2. Step 2: Convert to fraction form
    7,850/10,832.46 = 4,312.48/x
  3. Step 3: Cross multiply
    7,850x = 10,832.46 × 4,312.48
  4. Step 4: Simplify right side
    7,850x = 46,714,767.10
  5. Step 5: Solve for x
    x = 46,714,767.10/7,850
  6. Step 6: Final answer
    x = 5,950.93

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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.