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Finding the Fourth Proportional to 58,547.80, 87,821.34 and 19,104.94

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Solution

The fourth proportional to 58,547.80, 87,821.34 and 19,104.94 is: 28,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,547.80 : 87,821.34 = 19,104.94 : x
  2. Step 2: Convert to fraction form
    58,547.80/87,821.34 = 19,104.94/x
  3. Step 3: Cross multiply
    58,547.80x = 87,821.34 × 19,104.94
  4. Step 4: Simplify right side
    58,547.80x = 1,677,821,431.42
  5. Step 5: Solve for x
    x = 1,677,821,431.42/58,547.80
  6. Step 6: Final answer
    x = 28,657.29

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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.