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Finding the Fourth Proportional to 35,975.64, 53,979.03 and 19,316.22

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Solution

The fourth proportional to 35,975.64, 53,979.03 and 19,316.22 is: 28,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,975.64 : 53,979.03 = 19,316.22 : x
  2. Step 2: Convert to fraction form
    35,975.64/53,979.03 = 19,316.22/x
  3. Step 3: Cross multiply
    35,975.64x = 53,979.03 × 19,316.22
  4. Step 4: Simplify right side
    35,975.64x = 1,042,670,818.87
  5. Step 5: Solve for x
    x = 1,042,670,818.87/35,975.64
  6. Step 6: Final answer
    x = 28,982.69

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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.