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Finding the Fourth Proportional to 52,987.92, 79,473.24 and 19,700.16

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Solution

The fourth proportional to 52,987.92, 79,473.24 and 19,700.16 is: 29,547.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,987.92 : 79,473.24 = 19,700.16 : x
  2. Step 2: Convert to fraction form
    52,987.92/79,473.24 = 19,700.16/x
  3. Step 3: Cross multiply
    52,987.92x = 79,473.24 × 19,700.16
  4. Step 4: Simplify right side
    52,987.92x = 1,565,635,543.72
  5. Step 5: Solve for x
    x = 1,565,635,543.72/52,987.92
  6. Step 6: Final answer
    x = 29,547.03

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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.