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Finding the Fourth Proportional to 70,700.63, 106,024.01 and 31,236.21

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Solution

The fourth proportional to 70,700.63, 106,024.01 and 31,236.21 is: 46,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,700.63 : 106,024.01 = 31,236.21 : x
  2. Step 2: Convert to fraction form
    70,700.63/106,024.01 = 31,236.21/x
  3. Step 3: Cross multiply
    70,700.63x = 106,024.01 × 31,236.21
  4. Step 4: Simplify right side
    70,700.63x = 3,311,788,085.22
  5. Step 5: Solve for x
    x = 3,311,788,085.22/70,700.63
  6. Step 6: Final answer
    x = 46,842.42

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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.