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Finding the Fourth Proportional to 32,616.80, 48,928.80 and 10,426.40

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Solution

The fourth proportional to 32,616.80, 48,928.80 and 10,426.40 is: 15,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,616.80 : 48,928.80 = 10,426.40 : x
  2. Step 2: Convert to fraction form
    32,616.80/48,928.80 = 10,426.40/x
  3. Step 3: Cross multiply
    32,616.80x = 48,928.80 × 10,426.40
  4. Step 4: Simplify right side
    32,616.80x = 510,151,240.32
  5. Step 5: Solve for x
    x = 510,151,240.32/32,616.80
  6. Step 6: Final answer
    x = 15,640.75

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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.