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Finding the Fourth Proportional to 28,053.92, 38,668.92 and 26,479.28

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Solution

The fourth proportional to 28,053.92, 38,668.92 and 26,479.28 is: 36,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.92 : 38,668.92 = 26,479.28 : x
  2. Step 2: Convert to fraction form
    28,053.92/38,668.92 = 26,479.28/x
  3. Step 3: Cross multiply
    28,053.92x = 38,668.92 × 26,479.28
  4. Step 4: Simplify right side
    28,053.92x = 1,023,925,159.98
  5. Step 5: Solve for x
    x = 1,023,925,159.98/28,053.92
  6. Step 6: Final answer
    x = 36,498.47

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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.