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Finding the Fourth Proportional to 7,914.10, 10,922.02 and 4,377.24

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Solution

The fourth proportional to 7,914.10, 10,922.02 and 4,377.24 is: 6,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.10 : 10,922.02 = 4,377.24 : x
  2. Step 2: Convert to fraction form
    7,914.10/10,922.02 = 4,377.24/x
  3. Step 3: Cross multiply
    7,914.10x = 10,922.02 × 4,377.24
  4. Step 4: Simplify right side
    7,914.10x = 47,808,248.21
  5. Step 5: Solve for x
    x = 47,808,248.21/7,914.10
  6. Step 6: Final answer
    x = 6,040.90

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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.