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Finding the Fourth Proportional to 19,197.51, 28,776.53 and 7,348.50

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Solution

The fourth proportional to 19,197.51, 28,776.53 and 7,348.50 is: 11,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.51 : 28,776.53 = 7,348.50 : x
  2. Step 2: Convert to fraction form
    19,197.51/28,776.53 = 7,348.50/x
  3. Step 3: Cross multiply
    19,197.51x = 28,776.53 × 7,348.50
  4. Step 4: Simplify right side
    19,197.51x = 211,464,330.71
  5. Step 5: Solve for x
    x = 211,464,330.71/19,197.51
  6. Step 6: Final answer
    x = 11,015.20

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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.