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Finding the Fourth Proportional to 14,596.83, 20,139.91 and 8,929.51

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Solution

The fourth proportional to 14,596.83, 20,139.91 and 8,929.51 is: 12,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,596.83 : 20,139.91 = 8,929.51 : x
  2. Step 2: Convert to fraction form
    14,596.83/20,139.91 = 8,929.51/x
  3. Step 3: Cross multiply
    14,596.83x = 20,139.91 × 8,929.51
  4. Step 4: Simplify right side
    14,596.83x = 179,839,455.07
  5. Step 5: Solve for x
    x = 179,839,455.07/14,596.83
  6. Step 6: Final answer
    x = 12,320.45

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1.5x scale

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.