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Finding the Fourth Proportional to 19,244.52, 28,854.54 and 9,888.12

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Solution

The fourth proportional to 19,244.52, 28,854.54 and 9,888.12 is: 14,825.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,244.52 : 28,854.54 = 9,888.12 : x
  2. Step 2: Convert to fraction form
    19,244.52/28,854.54 = 9,888.12/x
  3. Step 3: Cross multiply
    19,244.52x = 28,854.54 × 9,888.12
  4. Step 4: Simplify right side
    19,244.52x = 285,317,154.06
  5. Step 5: Solve for x
    x = 285,317,154.06/19,244.52
  6. Step 6: Final answer
    x = 14,825.89

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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.