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Finding the Fourth Proportional to 19,829.30, 29,685.51 and 17,368.93

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Solution

The fourth proportional to 19,829.30, 29,685.51 and 17,368.93 is: 26,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.30 : 29,685.51 = 17,368.93 : x
  2. Step 2: Convert to fraction form
    19,829.30/29,685.51 = 17,368.93/x
  3. Step 3: Cross multiply
    19,829.30x = 29,685.51 × 17,368.93
  4. Step 4: Simplify right side
    19,829.30x = 515,605,396.78
  5. Step 5: Solve for x
    x = 515,605,396.78/19,829.30
  6. Step 6: Final answer
    x = 26,002.20

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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.