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Finding the Fourth Proportional to 70,612.32, 105,933.72 and 23,864.16

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Solution

The fourth proportional to 70,612.32, 105,933.72 and 23,864.16 is: 35,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,612.32 : 105,933.72 = 23,864.16 : x
  2. Step 2: Convert to fraction form
    70,612.32/105,933.72 = 23,864.16/x
  3. Step 3: Cross multiply
    70,612.32x = 105,933.72 × 23,864.16
  4. Step 4: Simplify right side
    70,612.32x = 2,528,019,243.48
  5. Step 5: Solve for x
    x = 2,528,019,243.48/70,612.32
  6. Step 6: Final answer
    x = 35,801.39

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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.