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Finding the Fourth Proportional to 58,465.98, 87,663.96 and 28,421.08

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Solution

The fourth proportional to 58,465.98, 87,663.96 and 28,421.08 is: 42,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,465.98 : 87,663.96 = 28,421.08 : x
  2. Step 2: Convert to fraction form
    58,465.98/87,663.96 = 28,421.08/x
  3. Step 3: Cross multiply
    58,465.98x = 87,663.96 × 28,421.08
  4. Step 4: Simplify right side
    58,465.98x = 2,491,504,420.28
  5. Step 5: Solve for x
    x = 2,491,504,420.28/58,465.98
  6. Step 6: Final answer
    x = 42,614.60

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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.