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Finding the Fourth Proportional to 70,427.34, 105,574.84 and 23,647.40

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Solution

The fourth proportional to 70,427.34, 105,574.84 and 23,647.40 is: 35,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,427.34 : 105,574.84 = 23,647.40 : x
  2. Step 2: Convert to fraction form
    70,427.34/105,574.84 = 23,647.40/x
  3. Step 3: Cross multiply
    70,427.34x = 105,574.84 × 23,647.40
  4. Step 4: Simplify right side
    70,427.34x = 2,496,570,471.42
  5. Step 5: Solve for x
    x = 2,496,570,471.42/70,427.34
  6. Step 6: Final answer
    x = 35,448.88

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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.