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Finding the Fourth Proportional to 74,682.30, 112,023.45 and 47,034.30

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Solution

The fourth proportional to 74,682.30, 112,023.45 and 47,034.30 is: 70,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,682.30 : 112,023.45 = 47,034.30 : x
  2. Step 2: Convert to fraction form
    74,682.30/112,023.45 = 47,034.30/x
  3. Step 3: Cross multiply
    74,682.30x = 112,023.45 × 47,034.30
  4. Step 4: Simplify right side
    74,682.30x = 5,268,944,554.34
  5. Step 5: Solve for x
    x = 5,268,944,554.34/74,682.30
  6. Step 6: Final answer
    x = 70,551.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.