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Finding the Fourth Proportional to 70,012.60, 96,623.16 and 39,807.43

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Solution

The fourth proportional to 70,012.60, 96,623.16 and 39,807.43 is: 54,937.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,012.60 : 96,623.16 = 39,807.43 : x
  2. Step 2: Convert to fraction form
    70,012.60/96,623.16 = 39,807.43/x
  3. Step 3: Cross multiply
    70,012.60x = 96,623.16 × 39,807.43
  4. Step 4: Simplify right side
    70,012.60x = 3,846,319,678.08
  5. Step 5: Solve for x
    x = 3,846,319,678.08/70,012.60
  6. Step 6: Final answer
    x = 54,937.54

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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.