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Finding the Fourth Proportional to 48,966.40, 73,449.60 and 12,030.40

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Solution

The fourth proportional to 48,966.40, 73,449.60 and 12,030.40 is: 18,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,966.40 : 73,449.60 = 12,030.40 : x
  2. Step 2: Convert to fraction form
    48,966.40/73,449.60 = 12,030.40/x
  3. Step 3: Cross multiply
    48,966.40x = 73,449.60 × 12,030.40
  4. Step 4: Simplify right side
    48,966.40x = 883,628,067.84
  5. Step 5: Solve for x
    x = 883,628,067.84/48,966.40
  6. Step 6: Final answer
    x = 18,045.60

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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.