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Finding the Fourth Proportional to 12,934.47, 19,411.47 and 10,368.39

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Solution

The fourth proportional to 12,934.47, 19,411.47 and 10,368.39 is: 15,560.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.47 : 19,411.47 = 10,368.39 : x
  2. Step 2: Convert to fraction form
    12,934.47/19,411.47 = 10,368.39/x
  3. Step 3: Cross multiply
    12,934.47x = 19,411.47 × 10,368.39
  4. Step 4: Simplify right side
    12,934.47x = 201,265,691.43
  5. Step 5: Solve for x
    x = 201,265,691.43/12,934.47
  6. Step 6: Final answer
    x = 15,560.41

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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.