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Finding the Fourth Proportional to 17,513.90, 26,248.05 and 7,113.50

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Solution

The fourth proportional to 17,513.90, 26,248.05 and 7,113.50 is: 10,660.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,513.90 : 26,248.05 = 7,113.50 : x
  2. Step 2: Convert to fraction form
    17,513.90/26,248.05 = 7,113.50/x
  3. Step 3: Cross multiply
    17,513.90x = 26,248.05 × 7,113.50
  4. Step 4: Simplify right side
    17,513.90x = 186,715,503.68
  5. Step 5: Solve for x
    x = 186,715,503.68/17,513.90
  6. Step 6: Final answer
    x = 10,660.99

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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.