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Finding the Fourth Proportional to 19,133.60, 28,683.12 and 17,060

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Solution

The fourth proportional to 19,133.60, 28,683.12 and 17,060 is: 25,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.60 : 28,683.12 = 17,060 : x
  2. Step 2: Convert to fraction form
    19,133.60/28,683.12 = 17,060/x
  3. Step 3: Cross multiply
    19,133.60x = 28,683.12 × 17,060
  4. Step 4: Simplify right side
    19,133.60x = 489,334,027.20
  5. Step 5: Solve for x
    x = 489,334,027.20/19,133.60
  6. Step 6: Final answer
    x = 25,574.59

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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.