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Finding the Fourth Proportional to 19,751.72, 27,258.12 and 10,798.72

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Solution

The fourth proportional to 19,751.72, 27,258.12 and 10,798.72 is: 14,902.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.72 : 27,258.12 = 10,798.72 : x
  2. Step 2: Convert to fraction form
    19,751.72/27,258.12 = 10,798.72/x
  3. Step 3: Cross multiply
    19,751.72x = 27,258.12 × 10,798.72
  4. Step 4: Simplify right side
    19,751.72x = 294,352,737.46
  5. Step 5: Solve for x
    x = 294,352,737.46/19,751.72
  6. Step 6: Final answer
    x = 14,902.64

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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.