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Finding the Fourth Proportional to 39,156.63, 58,734.99 and 9,574.47

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Solution

The fourth proportional to 39,156.63, 58,734.99 and 9,574.47 is: 14,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,156.63 : 58,734.99 = 9,574.47 : x
  2. Step 2: Convert to fraction form
    39,156.63/58,734.99 = 9,574.47/x
  3. Step 3: Cross multiply
    39,156.63x = 58,734.99 × 9,574.47
  4. Step 4: Simplify right side
    39,156.63x = 562,356,399.71
  5. Step 5: Solve for x
    x = 562,356,399.71/39,156.63
  6. Step 6: Final answer
    x = 14,361.72

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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.