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Finding the Fourth Proportional to 53,962.60, 80,943.90 and 49,815.40

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Solution

The fourth proportional to 53,962.60, 80,943.90 and 49,815.40 is: 74,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,962.60 : 80,943.90 = 49,815.40 : x
  2. Step 2: Convert to fraction form
    53,962.60/80,943.90 = 49,815.40/x
  3. Step 3: Cross multiply
    53,962.60x = 80,943.90 × 49,815.40
  4. Step 4: Simplify right side
    53,962.60x = 4,032,252,756.06
  5. Step 5: Solve for x
    x = 4,032,252,756.06/53,962.60
  6. Step 6: Final answer
    x = 74,723.10

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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.