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Finding the Fourth Proportional to 19,468.68, 26,866.80 and 10,516.20

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Solution

The fourth proportional to 19,468.68, 26,866.80 and 10,516.20 is: 14,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,468.68 : 26,866.80 = 10,516.20 : x
  2. Step 2: Convert to fraction form
    19,468.68/26,866.80 = 10,516.20/x
  3. Step 3: Cross multiply
    19,468.68x = 26,866.80 × 10,516.20
  4. Step 4: Simplify right side
    19,468.68x = 282,536,642.16
  5. Step 5: Solve for x
    x = 282,536,642.16/19,468.68
  6. Step 6: Final answer
    x = 14,512.37

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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.