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Finding the Fourth Proportional to 59,933.60, 89,900.40 and 38,938.40

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Solution

The fourth proportional to 59,933.60, 89,900.40 and 38,938.40 is: 58,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,933.60 : 89,900.40 = 38,938.40 : x
  2. Step 2: Convert to fraction form
    59,933.60/89,900.40 = 38,938.40/x
  3. Step 3: Cross multiply
    59,933.60x = 89,900.40 × 38,938.40
  4. Step 4: Simplify right side
    59,933.60x = 3,500,577,735.36
  5. Step 5: Solve for x
    x = 3,500,577,735.36/59,933.60
  6. Step 6: Final answer
    x = 58,407.60

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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.