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Finding the Fourth Proportional to 54,672.58, 75,447.07 and 30,798.78

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Solution

The fourth proportional to 54,672.58, 75,447.07 and 30,798.78 is: 42,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,672.58 : 75,447.07 = 30,798.78 : x
  2. Step 2: Convert to fraction form
    54,672.58/75,447.07 = 30,798.78/x
  3. Step 3: Cross multiply
    54,672.58x = 75,447.07 × 30,798.78
  4. Step 4: Simplify right side
    54,672.58x = 2,323,677,710.57
  5. Step 5: Solve for x
    x = 2,323,677,710.57/54,672.58
  6. Step 6: Final answer
    x = 42,501.70

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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.