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Finding the Fourth Proportional to 58,863.40, 88,291.05 and 18,881.80

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Solution

The fourth proportional to 58,863.40, 88,291.05 and 18,881.80 is: 28,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,863.40 : 88,291.05 = 18,881.80 : x
  2. Step 2: Convert to fraction form
    58,863.40/88,291.05 = 18,881.80/x
  3. Step 3: Cross multiply
    58,863.40x = 88,291.05 × 18,881.80
  4. Step 4: Simplify right side
    58,863.40x = 1,667,093,947.89
  5. Step 5: Solve for x
    x = 1,667,093,947.89/58,863.40
  6. Step 6: Final answer
    x = 28,321.40

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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.