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Finding the Fourth Proportional to 16,782.99, 25,158.07 and 6,929.13

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Solution

The fourth proportional to 16,782.99, 25,158.07 and 6,929.13 is: 10,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,782.99 : 25,158.07 = 6,929.13 : x
  2. Step 2: Convert to fraction form
    16,782.99/25,158.07 = 6,929.13/x
  3. Step 3: Cross multiply
    16,782.99x = 25,158.07 × 6,929.13
  4. Step 4: Simplify right side
    16,782.99x = 174,323,537.58
  5. Step 5: Solve for x
    x = 174,323,537.58/16,782.99
  6. Step 6: Final answer
    x = 10,386.92

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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.