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Finding the Fourth Proportional to 14,275.92, 21,415.92 and 4,415.97

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Solution

The fourth proportional to 14,275.92, 21,415.92 and 4,415.97 is: 6,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.92 : 21,415.92 = 4,415.97 : x
  2. Step 2: Convert to fraction form
    14,275.92/21,415.92 = 4,415.97/x
  3. Step 3: Cross multiply
    14,275.92x = 21,415.92 × 4,415.97
  4. Step 4: Simplify right side
    14,275.92x = 94,572,060.24
  5. Step 5: Solve for x
    x = 94,572,060.24/14,275.92
  6. Step 6: Final answer
    x = 6,624.59

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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.