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Finding the Fourth Proportional to 59,458.60, 89,187.90 and 20,011.60

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Solution

The fourth proportional to 59,458.60, 89,187.90 and 20,011.60 is: 30,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,458.60 : 89,187.90 = 20,011.60 : x
  2. Step 2: Convert to fraction form
    59,458.60/89,187.90 = 20,011.60/x
  3. Step 3: Cross multiply
    59,458.60x = 89,187.90 × 20,011.60
  4. Step 4: Simplify right side
    59,458.60x = 1,784,792,579.64
  5. Step 5: Solve for x
    x = 1,784,792,579.64/59,458.60
  6. Step 6: Final answer
    x = 30,017.40

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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.