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Finding the Fourth Proportional to 39,384.30, 59,076.90 and 9,802.20

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Solution

The fourth proportional to 39,384.30, 59,076.90 and 9,802.20 is: 14,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,384.30 : 59,076.90 = 9,802.20 : x
  2. Step 2: Convert to fraction form
    39,384.30/59,076.90 = 9,802.20/x
  3. Step 3: Cross multiply
    39,384.30x = 59,076.90 × 9,802.20
  4. Step 4: Simplify right side
    39,384.30x = 579,083,589.18
  5. Step 5: Solve for x
    x = 579,083,589.18/39,384.30
  6. Step 6: Final answer
    x = 14,703.41

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1.5x scale

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.