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Finding the Fourth Proportional to 9,176.54, 12,663.77 and 4,984.79

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Solution

The fourth proportional to 9,176.54, 12,663.77 and 4,984.79 is: 6,879.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.54 : 12,663.77 = 4,984.79 : x
  2. Step 2: Convert to fraction form
    9,176.54/12,663.77 = 4,984.79/x
  3. Step 3: Cross multiply
    9,176.54x = 12,663.77 × 4,984.79
  4. Step 4: Simplify right side
    9,176.54x = 63,126,145.82
  5. Step 5: Solve for x
    x = 63,126,145.82/9,176.54
  6. Step 6: Final answer
    x = 6,879.08

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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.