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Finding the Fourth Proportional to 18,507.34, 27,888.73 and 16,752.88

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Solution

The fourth proportional to 18,507.34, 27,888.73 and 16,752.88 is: 25,244.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.34 : 27,888.73 = 16,752.88 : x
  2. Step 2: Convert to fraction form
    18,507.34/27,888.73 = 16,752.88/x
  3. Step 3: Cross multiply
    18,507.34x = 27,888.73 × 16,752.88
  4. Step 4: Simplify right side
    18,507.34x = 467,216,547.04
  5. Step 5: Solve for x
    x = 467,216,547.04/18,507.34
  6. Step 6: Final answer
    x = 25,244.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.