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Finding the Fourth Proportional to 58,012.61, 87,031.67 and 18,573.71

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Solution

The fourth proportional to 58,012.61, 87,031.67 and 18,573.71 is: 27,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,012.61 : 87,031.67 = 18,573.71 : x
  2. Step 2: Convert to fraction form
    58,012.61/87,031.67 = 18,573.71/x
  3. Step 3: Cross multiply
    58,012.61x = 87,031.67 × 18,573.71
  4. Step 4: Simplify right side
    58,012.61x = 1,616,500,471.37
  5. Step 5: Solve for x
    x = 1,616,500,471.37/58,012.61
  6. Step 6: Final answer
    x = 27,864.64

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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.