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Finding the Fourth Proportional to 58,577.61, 87,855.30 and 28,561.71

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Solution

The fourth proportional to 58,577.61, 87,855.30 and 28,561.71 is: 42,837.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,577.61 : 87,855.30 = 28,561.71 : x
  2. Step 2: Convert to fraction form
    58,577.61/87,855.30 = 28,561.71/x
  3. Step 3: Cross multiply
    58,577.61x = 87,855.30 × 28,561.71
  4. Step 4: Simplify right side
    58,577.61x = 2,509,297,930.02
  5. Step 5: Solve for x
    x = 2,509,297,930.02/58,577.61
  6. Step 6: Final answer
    x = 42,837.15

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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.