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Finding the Fourth Proportional to 54,678.80, 74,964.62 and 53,682.32

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Solution

The fourth proportional to 54,678.80, 74,964.62 and 53,682.32 is: 73,598.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,678.80 : 74,964.62 = 53,682.32 : x
  2. Step 2: Convert to fraction form
    54,678.80/74,964.62 = 53,682.32/x
  3. Step 3: Cross multiply
    54,678.80x = 74,964.62 × 53,682.32
  4. Step 4: Simplify right side
    54,678.80x = 4,024,274,719.52
  5. Step 5: Solve for x
    x = 4,024,274,719.52/54,678.80
  6. Step 6: Final answer
    x = 73,598.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.