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Finding the Fourth Proportional to 54,266.53, 74,888.04 and 31,621.06

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Solution

The fourth proportional to 54,266.53, 74,888.04 and 31,621.06 is: 43,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,266.53 : 74,888.04 = 31,621.06 : x
  2. Step 2: Convert to fraction form
    54,266.53/74,888.04 = 31,621.06/x
  3. Step 3: Cross multiply
    54,266.53x = 74,888.04 × 31,621.06
  4. Step 4: Simplify right side
    54,266.53x = 2,368,039,207.69
  5. Step 5: Solve for x
    x = 2,368,039,207.69/54,266.53
  6. Step 6: Final answer
    x = 43,637.19

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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.