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Finding the Fourth Proportional to 58,215.51, 87,314.76 and 28,625.40

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Solution

The fourth proportional to 58,215.51, 87,314.76 and 28,625.40 is: 42,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,215.51 : 87,314.76 = 28,625.40 : x
  2. Step 2: Convert to fraction form
    58,215.51/87,314.76 = 28,625.40/x
  3. Step 3: Cross multiply
    58,215.51x = 87,314.76 × 28,625.40
  4. Step 4: Simplify right side
    58,215.51x = 2,499,419,930.90
  5. Step 5: Solve for x
    x = 2,499,419,930.90/58,215.51
  6. Step 6: Final answer
    x = 42,933.92

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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.