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Finding the Fourth Proportional to 52,653.25, 78,979.88 and 15,717.25

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Solution

The fourth proportional to 52,653.25, 78,979.88 and 15,717.25 is: 23,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,653.25 : 78,979.88 = 15,717.25 : x
  2. Step 2: Convert to fraction form
    52,653.25/78,979.88 = 15,717.25/x
  3. Step 3: Cross multiply
    52,653.25x = 78,979.88 × 15,717.25
  4. Step 4: Simplify right side
    52,653.25x = 1,241,346,518.93
  5. Step 5: Solve for x
    x = 1,241,346,518.93/52,653.25
  6. Step 6: Final answer
    x = 23,575.88

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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.