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Finding the Fourth Proportional to 23,485.34, 35,228.07 and 7,913.90

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Solution

The fourth proportional to 23,485.34, 35,228.07 and 7,913.90 is: 11,870.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,485.34 : 35,228.07 = 7,913.90 : x
  2. Step 2: Convert to fraction form
    23,485.34/35,228.07 = 7,913.90/x
  3. Step 3: Cross multiply
    23,485.34x = 35,228.07 × 7,913.90
  4. Step 4: Simplify right side
    23,485.34x = 278,791,423.17
  5. Step 5: Solve for x
    x = 278,791,423.17/23,485.34
  6. Step 6: Final answer
    x = 11,870.87

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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.