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Finding the Fourth Proportional to 58,033.47, 87,021.47 and 20,587.93

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Solution

The fourth proportional to 58,033.47, 87,021.47 and 20,587.93 is: 30,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,033.47 : 87,021.47 = 20,587.93 : x
  2. Step 2: Convert to fraction form
    58,033.47/87,021.47 = 20,587.93/x
  3. Step 3: Cross multiply
    58,033.47x = 87,021.47 × 20,587.93
  4. Step 4: Simplify right side
    58,033.47x = 1,791,591,766.77
  5. Step 5: Solve for x
    x = 1,791,591,766.77/58,033.47
  6. Step 6: Final answer
    x = 30,871.70

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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.