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Finding the Fourth Proportional to 34,668.48, 47,868.24 and 21,258.24

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Solution

The fourth proportional to 34,668.48, 47,868.24 and 21,258.24 is: 29,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,668.48 : 47,868.24 = 21,258.24 : x
  2. Step 2: Convert to fraction form
    34,668.48/47,868.24 = 21,258.24/x
  3. Step 3: Cross multiply
    34,668.48x = 47,868.24 × 21,258.24
  4. Step 4: Simplify right side
    34,668.48x = 1,017,594,534.30
  5. Step 5: Solve for x
    x = 1,017,594,534.30/34,668.48
  6. Step 6: Final answer
    x = 29,352.15

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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.