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Finding the Fourth Proportional to 16,873.69, 23,285.69 and 9,421.69

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Solution

The fourth proportional to 16,873.69, 23,285.69 and 9,421.69 is: 13,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,873.69 : 23,285.69 = 9,421.69 : x
  2. Step 2: Convert to fraction form
    16,873.69/23,285.69 = 9,421.69/x
  3. Step 3: Cross multiply
    16,873.69x = 23,285.69 × 9,421.69
  4. Step 4: Simplify right side
    16,873.69x = 219,390,482.62
  5. Step 5: Solve for x
    x = 219,390,482.62/16,873.69
  6. Step 6: Final answer
    x = 13,001.93

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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.