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Finding the Fourth Proportional to 58,489.88, 87,681.74 and 30,377.07

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Solution

The fourth proportional to 58,489.88, 87,681.74 and 30,377.07 is: 45,538.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,489.88 : 87,681.74 = 30,377.07 : x
  2. Step 2: Convert to fraction form
    58,489.88/87,681.74 = 30,377.07/x
  3. Step 3: Cross multiply
    58,489.88x = 87,681.74 × 30,377.07
  4. Step 4: Simplify right side
    58,489.88x = 2,663,514,201.82
  5. Step 5: Solve for x
    x = 2,663,514,201.82/58,489.88
  6. Step 6: Final answer
    x = 45,538.04

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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.