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Finding the Fourth Proportional to 34,821.76, 48,053.32 and 19,717.28

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Solution

The fourth proportional to 34,821.76, 48,053.32 and 19,717.28 is: 27,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,821.76 : 48,053.32 = 19,717.28 : x
  2. Step 2: Convert to fraction form
    34,821.76/48,053.32 = 19,717.28/x
  3. Step 3: Cross multiply
    34,821.76x = 48,053.32 × 19,717.28
  4. Step 4: Simplify right side
    34,821.76x = 947,480,765.37
  5. Step 5: Solve for x
    x = 947,480,765.37/34,821.76
  6. Step 6: Final answer
    x = 27,209.45

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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.