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Finding the Fourth Proportional to 55,463.87, 76,529.51 and 31,590.03

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Solution

The fourth proportional to 55,463.87, 76,529.51 and 31,590.03 is: 43,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,463.87 : 76,529.51 = 31,590.03 : x
  2. Step 2: Convert to fraction form
    55,463.87/76,529.51 = 31,590.03/x
  3. Step 3: Cross multiply
    55,463.87x = 76,529.51 × 31,590.03
  4. Step 4: Simplify right side
    55,463.87x = 2,417,569,358.84
  5. Step 5: Solve for x
    x = 2,417,569,358.84/55,463.87
  6. Step 6: Final answer
    x = 43,588.19

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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.