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Finding the Fourth Proportional to 55,608.40, 83,412.60 and 49,387.60

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Solution

The fourth proportional to 55,608.40, 83,412.60 and 49,387.60 is: 74,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,608.40 : 83,412.60 = 49,387.60 : x
  2. Step 2: Convert to fraction form
    55,608.40/83,412.60 = 49,387.60/x
  3. Step 3: Cross multiply
    55,608.40x = 83,412.60 × 49,387.60
  4. Step 4: Simplify right side
    55,608.40x = 4,119,548,123.76
  5. Step 5: Solve for x
    x = 4,119,548,123.76/55,608.40
  6. Step 6: Final answer
    x = 74,081.40

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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.