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Finding the Fourth Proportional to 54,130.44, 74,712.06 and 32,905.20

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Solution

The fourth proportional to 54,130.44, 74,712.06 and 32,905.20 is: 45,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,130.44 : 74,712.06 = 32,905.20 : x
  2. Step 2: Convert to fraction form
    54,130.44/74,712.06 = 32,905.20/x
  3. Step 3: Cross multiply
    54,130.44x = 74,712.06 × 32,905.20
  4. Step 4: Simplify right side
    54,130.44x = 2,458,415,276.71
  5. Step 5: Solve for x
    x = 2,458,415,276.71/54,130.44
  6. Step 6: Final answer
    x = 45,416.50

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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.