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Finding the Fourth Proportional to 58,589.40, 87,884.10 and 21,167.40

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Solution

The fourth proportional to 58,589.40, 87,884.10 and 21,167.40 is: 31,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,589.40 : 87,884.10 = 21,167.40 : x
  2. Step 2: Convert to fraction form
    58,589.40/87,884.10 = 21,167.40/x
  3. Step 3: Cross multiply
    58,589.40x = 87,884.10 × 21,167.40
  4. Step 4: Simplify right side
    58,589.40x = 1,860,277,898.34
  5. Step 5: Solve for x
    x = 1,860,277,898.34/58,589.40
  6. Step 6: Final answer
    x = 31,751.10

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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.