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Finding the Fourth Proportional to 59,914.40, 89,871.60 and 30,423.20

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Solution

The fourth proportional to 59,914.40, 89,871.60 and 30,423.20 is: 45,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,914.40 : 89,871.60 = 30,423.20 : x
  2. Step 2: Convert to fraction form
    59,914.40/89,871.60 = 30,423.20/x
  3. Step 3: Cross multiply
    59,914.40x = 89,871.60 × 30,423.20
  4. Step 4: Simplify right side
    59,914.40x = 2,734,181,661.12
  5. Step 5: Solve for x
    x = 2,734,181,661.12/59,914.40
  6. Step 6: Final answer
    x = 45,634.80

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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.