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Finding the Fourth Proportional to 23,643.40, 35,473.20 and 10,505.20

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Solution

The fourth proportional to 23,643.40, 35,473.20 and 10,505.20 is: 15,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,643.40 : 35,473.20 = 10,505.20 : x
  2. Step 2: Convert to fraction form
    23,643.40/35,473.20 = 10,505.20/x
  3. Step 3: Cross multiply
    23,643.40x = 35,473.20 × 10,505.20
  4. Step 4: Simplify right side
    23,643.40x = 372,653,060.64
  5. Step 5: Solve for x
    x = 372,653,060.64/23,643.40
  6. Step 6: Final answer
    x = 15,761.40

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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.