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Finding the Fourth Proportional to 7,899.55, 10,901.43 and 4,314.42

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Solution

The fourth proportional to 7,899.55, 10,901.43 and 4,314.42 is: 5,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.55 : 10,901.43 = 4,314.42 : x
  2. Step 2: Convert to fraction form
    7,899.55/10,901.43 = 4,314.42/x
  3. Step 3: Cross multiply
    7,899.55x = 10,901.43 × 4,314.42
  4. Step 4: Simplify right side
    7,899.55x = 47,033,293.11
  5. Step 5: Solve for x
    x = 47,033,293.11/7,899.55
  6. Step 6: Final answer
    x = 5,953.92

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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.