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Finding the Fourth Proportional to 70,603.40, 105,905.10 and 23,855.60

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Solution

The fourth proportional to 70,603.40, 105,905.10 and 23,855.60 is: 35,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,603.40 : 105,905.10 = 23,855.60 : x
  2. Step 2: Convert to fraction form
    70,603.40/105,905.10 = 23,855.60/x
  3. Step 3: Cross multiply
    70,603.40x = 105,905.10 × 23,855.60
  4. Step 4: Simplify right side
    70,603.40x = 2,526,429,703.56
  5. Step 5: Solve for x
    x = 2,526,429,703.56/70,603.40
  6. Step 6: Final answer
    x = 35,783.40

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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.