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Finding the Fourth Proportional to 58,438.80, 87,658.20 and 23,403.60

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Solution

The fourth proportional to 58,438.80, 87,658.20 and 23,403.60 is: 35,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,438.80 : 87,658.20 = 23,403.60 : x
  2. Step 2: Convert to fraction form
    58,438.80/87,658.20 = 23,403.60/x
  3. Step 3: Cross multiply
    58,438.80x = 87,658.20 × 23,403.60
  4. Step 4: Simplify right side
    58,438.80x = 2,051,517,449.52
  5. Step 5: Solve for x
    x = 2,051,517,449.52/58,438.80
  6. Step 6: Final answer
    x = 35,105.40

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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.