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Finding the Fourth Proportional to 59,991.40, 89,987.10 and 48,327.40

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Solution

The fourth proportional to 59,991.40, 89,987.10 and 48,327.40 is: 72,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,991.40 : 89,987.10 = 48,327.40 : x
  2. Step 2: Convert to fraction form
    59,991.40/89,987.10 = 48,327.40/x
  3. Step 3: Cross multiply
    59,991.40x = 89,987.10 × 48,327.40
  4. Step 4: Simplify right side
    59,991.40x = 4,348,842,576.54
  5. Step 5: Solve for x
    x = 4,348,842,576.54/59,991.40
  6. Step 6: Final answer
    x = 72,491.10

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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.