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Finding the Fourth Proportional to 53,955.80, 74,289.56 and 45,873.56

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Solution

The fourth proportional to 53,955.80, 74,289.56 and 45,873.56 is: 63,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,955.80 : 74,289.56 = 45,873.56 : x
  2. Step 2: Convert to fraction form
    53,955.80/74,289.56 = 45,873.56/x
  3. Step 3: Cross multiply
    53,955.80x = 74,289.56 × 45,873.56
  4. Step 4: Simplify right side
    53,955.80x = 3,407,926,588.03
  5. Step 5: Solve for x
    x = 3,407,926,588.03/53,955.80
  6. Step 6: Final answer
    x = 63,161.45

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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.