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Finding the Fourth Proportional to 27,040.40, 37,320.04 and 15,862.40

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Solution

The fourth proportional to 27,040.40, 37,320.04 and 15,862.40 is: 21,892.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,040.40 : 37,320.04 = 15,862.40 : x
  2. Step 2: Convert to fraction form
    27,040.40/37,320.04 = 15,862.40/x
  3. Step 3: Cross multiply
    27,040.40x = 37,320.04 × 15,862.40
  4. Step 4: Simplify right side
    27,040.40x = 591,985,402.50
  5. Step 5: Solve for x
    x = 591,985,402.50/27,040.40
  6. Step 6: Final answer
    x = 21,892.63

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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.