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Finding the Fourth Proportional to 19,014.80, 28,522.20 and 16,710.80

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Solution

The fourth proportional to 19,014.80, 28,522.20 and 16,710.80 is: 25,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,014.80 : 28,522.20 = 16,710.80 : x
  2. Step 2: Convert to fraction form
    19,014.80/28,522.20 = 16,710.80/x
  3. Step 3: Cross multiply
    19,014.80x = 28,522.20 × 16,710.80
  4. Step 4: Simplify right side
    19,014.80x = 476,628,779.76
  5. Step 5: Solve for x
    x = 476,628,779.76/19,014.80
  6. Step 6: Final answer
    x = 25,066.20

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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.