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Finding the Fourth Proportional to 61,453.96, 84,800.60 and 45,330.06

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Solution

The fourth proportional to 61,453.96, 84,800.60 and 45,330.06 is: 62,551.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,453.96 : 84,800.60 = 45,330.06 : x
  2. Step 2: Convert to fraction form
    61,453.96/84,800.60 = 45,330.06/x
  3. Step 3: Cross multiply
    61,453.96x = 84,800.60 × 45,330.06
  4. Step 4: Simplify right side
    61,453.96x = 3,844,016,286.04
  5. Step 5: Solve for x
    x = 3,844,016,286.04/61,453.96
  6. Step 6: Final answer
    x = 62,551.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.