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Finding the Fourth Proportional to 19,008.70, 28,513.05 and 17,064.70

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Solution

The fourth proportional to 19,008.70, 28,513.05 and 17,064.70 is: 25,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.70 : 28,513.05 = 17,064.70 : x
  2. Step 2: Convert to fraction form
    19,008.70/28,513.05 = 17,064.70/x
  3. Step 3: Cross multiply
    19,008.70x = 28,513.05 × 17,064.70
  4. Step 4: Simplify right side
    19,008.70x = 486,566,644.34
  5. Step 5: Solve for x
    x = 486,566,644.34/19,008.70
  6. Step 6: Final answer
    x = 25,597.05

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Similar ratio
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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.