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Finding the Fourth Proportional to 17,875.69, 26,624.70 and 16,938.92

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Solution

The fourth proportional to 17,875.69, 26,624.70 and 16,938.92 is: 25,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,875.69 : 26,624.70 = 16,938.92 : x
  2. Step 2: Convert to fraction form
    17,875.69/26,624.70 = 16,938.92/x
  3. Step 3: Cross multiply
    17,875.69x = 26,624.70 × 16,938.92
  4. Step 4: Simplify right side
    17,875.69x = 450,993,729.89
  5. Step 5: Solve for x
    x = 450,993,729.89/17,875.69
  6. Step 6: Final answer
    x = 25,229.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.