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Finding the Fourth Proportional to 58,221.01, 87,323.01 and 28,630.90

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Solution

The fourth proportional to 58,221.01, 87,323.01 and 28,630.90 is: 42,942.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.01 : 87,323.01 = 28,630.90 : x
  2. Step 2: Convert to fraction form
    58,221.01/87,323.01 = 28,630.90/x
  3. Step 3: Cross multiply
    58,221.01x = 87,323.01 × 28,630.90
  4. Step 4: Simplify right side
    58,221.01x = 2,500,136,367.01
  5. Step 5: Solve for x
    x = 2,500,136,367.01/58,221.01
  6. Step 6: Final answer
    x = 42,942.17

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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.