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Finding the Fourth Proportional to 9,611.81, 14,426.70 and 5,921.24

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Solution

The fourth proportional to 9,611.81, 14,426.70 and 5,921.24 is: 8,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.81 : 14,426.70 = 5,921.24 : x
  2. Step 2: Convert to fraction form
    9,611.81/14,426.70 = 5,921.24/x
  3. Step 3: Cross multiply
    9,611.81x = 14,426.70 × 5,921.24
  4. Step 4: Simplify right side
    9,611.81x = 85,423,953.11
  5. Step 5: Solve for x
    x = 85,423,953.11/9,611.81
  6. Step 6: Final answer
    x = 8,887.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.