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Finding the Fourth Proportional to 30,873.65, 42,605.19 and 17,444.48

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Solution

The fourth proportional to 30,873.65, 42,605.19 and 17,444.48 is: 24,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,873.65 : 42,605.19 = 17,444.48 : x
  2. Step 2: Convert to fraction form
    30,873.65/42,605.19 = 17,444.48/x
  3. Step 3: Cross multiply
    30,873.65x = 42,605.19 × 17,444.48
  4. Step 4: Simplify right side
    30,873.65x = 743,225,171.83
  5. Step 5: Solve for x
    x = 743,225,171.83/30,873.65
  6. Step 6: Final answer
    x = 24,073.13

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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.