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Finding the Fourth Proportional to 39,303.48, 58,954.64 and 9,721.32

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Solution

The fourth proportional to 39,303.48, 58,954.64 and 9,721.32 is: 14,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,303.48 : 58,954.64 = 9,721.32 : x
  2. Step 2: Convert to fraction form
    39,303.48/58,954.64 = 9,721.32/x
  3. Step 3: Cross multiply
    39,303.48x = 58,954.64 × 9,721.32
  4. Step 4: Simplify right side
    39,303.48x = 573,116,920.92
  5. Step 5: Solve for x
    x = 573,116,920.92/39,303.48
  6. Step 6: Final answer
    x = 14,581.84

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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.