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Finding the Fourth Proportional to 19,263.68, 28,878.24 and 8,866.88

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Solution

The fourth proportional to 19,263.68, 28,878.24 and 8,866.88 is: 13,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,263.68 : 28,878.24 = 8,866.88 : x
  2. Step 2: Convert to fraction form
    19,263.68/28,878.24 = 8,866.88/x
  3. Step 3: Cross multiply
    19,263.68x = 28,878.24 × 8,866.88
  4. Step 4: Simplify right side
    19,263.68x = 256,059,888.69
  5. Step 5: Solve for x
    x = 256,059,888.69/19,263.68
  6. Step 6: Final answer
    x = 13,292.37

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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.