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Finding the Fourth Proportional to 58,079.60, 87,004.20 and 34,636.40

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Solution

The fourth proportional to 58,079.60, 87,004.20 and 34,636.40 is: 51,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,079.60 : 87,004.20 = 34,636.40 : x
  2. Step 2: Convert to fraction form
    58,079.60/87,004.20 = 34,636.40/x
  3. Step 3: Cross multiply
    58,079.60x = 87,004.20 × 34,636.40
  4. Step 4: Simplify right side
    58,079.60x = 3,013,512,272.88
  5. Step 5: Solve for x
    x = 3,013,512,272.88/58,079.60
  6. Step 6: Final answer
    x = 51,885.90

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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.