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Finding the Fourth Proportional to 19,349.68, 28,968.72 and 17,348.80

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Solution

The fourth proportional to 19,349.68, 28,968.72 and 17,348.80 is: 25,973.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,349.68 : 28,968.72 = 17,348.80 : x
  2. Step 2: Convert to fraction form
    19,349.68/28,968.72 = 17,348.80/x
  3. Step 3: Cross multiply
    19,349.68x = 28,968.72 × 17,348.80
  4. Step 4: Simplify right side
    19,349.68x = 502,572,529.54
  5. Step 5: Solve for x
    x = 502,572,529.54/19,349.68
  6. Step 6: Final answer
    x = 25,973.17

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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.