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Finding the Fourth Proportional to 77,472.32, 106,898.31 and 43,482.24

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Solution

The fourth proportional to 77,472.32, 106,898.31 and 43,482.24 is: 59,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,472.32 : 106,898.31 = 43,482.24 : x
  2. Step 2: Convert to fraction form
    77,472.32/106,898.31 = 43,482.24/x
  3. Step 3: Cross multiply
    77,472.32x = 106,898.31 × 43,482.24
  4. Step 4: Simplify right side
    77,472.32x = 4,648,178,149.37
  5. Step 5: Solve for x
    x = 4,648,178,149.37/77,472.32
  6. Step 6: Final answer
    x = 59,997.92

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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.