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Finding the Fourth Proportional to 19,225.60, 26,521.60 and 17,708.80

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Solution

The fourth proportional to 19,225.60, 26,521.60 and 17,708.80 is: 24,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,225.60 : 26,521.60 = 17,708.80 : x
  2. Step 2: Convert to fraction form
    19,225.60/26,521.60 = 17,708.80/x
  3. Step 3: Cross multiply
    19,225.60x = 26,521.60 × 17,708.80
  4. Step 4: Simplify right side
    19,225.60x = 469,665,710.08
  5. Step 5: Solve for x
    x = 469,665,710.08/19,225.60
  6. Step 6: Final answer
    x = 24,429.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.