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Finding the Fourth Proportional to 27,210.88, 40,815.84 and 15,499.12

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Solution

The fourth proportional to 27,210.88, 40,815.84 and 15,499.12 is: 23,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,210.88 : 40,815.84 = 15,499.12 : x
  2. Step 2: Convert to fraction form
    27,210.88/40,815.84 = 15,499.12/x
  3. Step 3: Cross multiply
    27,210.88x = 40,815.84 × 15,499.12
  4. Step 4: Simplify right side
    27,210.88x = 632,609,602.06
  5. Step 5: Solve for x
    x = 632,609,602.06/27,210.88
  6. Step 6: Final answer
    x = 23,248.41

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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.