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Finding the Fourth Proportional to 53,168.59, 79,728.58 and 19,864.23

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Solution

The fourth proportional to 53,168.59, 79,728.58 and 19,864.23 is: 29,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,168.59 : 79,728.58 = 19,864.23 : x
  2. Step 2: Convert to fraction form
    53,168.59/79,728.58 = 19,864.23/x
  3. Step 3: Cross multiply
    53,168.59x = 79,728.58 × 19,864.23
  4. Step 4: Simplify right side
    53,168.59x = 1,583,746,850.69
  5. Step 5: Solve for x
    x = 1,583,746,850.69/53,168.59
  6. Step 6: Final answer
    x = 29,787.26

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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.