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Finding the Fourth Proportional to 7,899.62, 10,901.48 and 4,314.63

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Solution

The fourth proportional to 7,899.62, 10,901.48 and 4,314.63 is: 5,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.62 : 10,901.48 = 4,314.63 : x
  2. Step 2: Convert to fraction form
    7,899.62/10,901.48 = 4,314.63/x
  3. Step 3: Cross multiply
    7,899.62x = 10,901.48 × 4,314.63
  4. Step 4: Simplify right side
    7,899.62x = 47,035,798.15
  5. Step 5: Solve for x
    x = 47,035,798.15/7,899.62
  6. Step 6: Final answer
    x = 5,954.19

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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.