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Finding the Fourth Proportional to 19,483.93, 26,869.89 and 12,767.11

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Solution

The fourth proportional to 19,483.93, 26,869.89 and 12,767.11 is: 17,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.93 : 26,869.89 = 12,767.11 : x
  2. Step 2: Convert to fraction form
    19,483.93/26,869.89 = 12,767.11/x
  3. Step 3: Cross multiply
    19,483.93x = 26,869.89 × 12,767.11
  4. Step 4: Simplify right side
    19,483.93x = 343,050,841.32
  5. Step 5: Solve for x
    x = 343,050,841.32/19,483.93
  6. Step 6: Final answer
    x = 17,606.86

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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.