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Finding the Fourth Proportional to 19,242, 26,564.98 and 14,668.76

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Solution

The fourth proportional to 19,242, 26,564.98 and 14,668.76 is: 20,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242 : 26,564.98 = 14,668.76 : x
  2. Step 2: Convert to fraction form
    19,242/26,564.98 = 14,668.76/x
  3. Step 3: Cross multiply
    19,242x = 26,564.98 × 14,668.76
  4. Step 4: Simplify right side
    19,242x = 389,675,316.02
  5. Step 5: Solve for x
    x = 389,675,316.02/19,242
  6. Step 6: Final answer
    x = 20,251.29

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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.