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Finding the Fourth Proportional to 19,363.50, 26,717.54 and 12,658.98

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Solution

The fourth proportional to 19,363.50, 26,717.54 and 12,658.98 is: 17,466.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.50 : 26,717.54 = 12,658.98 : x
  2. Step 2: Convert to fraction form
    19,363.50/26,717.54 = 12,658.98/x
  3. Step 3: Cross multiply
    19,363.50x = 26,717.54 × 12,658.98
  4. Step 4: Simplify right side
    19,363.50x = 338,216,804.51
  5. Step 5: Solve for x
    x = 338,216,804.51/19,363.50
  6. Step 6: Final answer
    x = 17,466.72

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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.