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Finding the Fourth Proportional to 27,894.76, 38,483.63 and 17,820.58

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Solution

The fourth proportional to 27,894.76, 38,483.63 and 17,820.58 is: 24,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,894.76 : 38,483.63 = 17,820.58 : x
  2. Step 2: Convert to fraction form
    27,894.76/38,483.63 = 17,820.58/x
  3. Step 3: Cross multiply
    27,894.76x = 38,483.63 × 17,820.58
  4. Step 4: Simplify right side
    27,894.76x = 685,800,607.11
  5. Step 5: Solve for x
    x = 685,800,607.11/27,894.76
  6. Step 6: Final answer
    x = 24,585.28

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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.