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Finding the Fourth Proportional to 19,698.72, 27,183.84 and 10,746.24

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Solution

The fourth proportional to 19,698.72, 27,183.84 and 10,746.24 is: 14,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.72 : 27,183.84 = 10,746.24 : x
  2. Step 2: Convert to fraction form
    19,698.72/27,183.84 = 10,746.24/x
  3. Step 3: Cross multiply
    19,698.72x = 27,183.84 × 10,746.24
  4. Step 4: Simplify right side
    19,698.72x = 292,124,068.76
  5. Step 5: Solve for x
    x = 292,124,068.76/19,698.72
  6. Step 6: Final answer
    x = 14,829.60

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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.