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Finding the Fourth Proportional to 39,358.68, 59,038.29 and 14,388.46

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Solution

The fourth proportional to 39,358.68, 59,038.29 and 14,388.46 is: 21,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.68 : 59,038.29 = 14,388.46 : x
  2. Step 2: Convert to fraction form
    39,358.68/59,038.29 = 14,388.46/x
  3. Step 3: Cross multiply
    39,358.68x = 59,038.29 × 14,388.46
  4. Step 4: Simplify right side
    39,358.68x = 849,470,133.05
  5. Step 5: Solve for x
    x = 849,470,133.05/39,358.68
  6. Step 6: Final answer
    x = 21,582.79

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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.