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Finding the Fourth Proportional to 49,644.40, 74,470.20 and 29,880.40

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Solution

The fourth proportional to 49,644.40, 74,470.20 and 29,880.40 is: 44,822.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,644.40 : 74,470.20 = 29,880.40 : x
  2. Step 2: Convert to fraction form
    49,644.40/74,470.20 = 29,880.40/x
  3. Step 3: Cross multiply
    49,644.40x = 74,470.20 × 29,880.40
  4. Step 4: Simplify right side
    49,644.40x = 2,225,199,364.08
  5. Step 5: Solve for x
    x = 2,225,199,364.08/49,644.40
  6. Step 6: Final answer
    x = 44,822.77

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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.