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Finding the Fourth Proportional to 38,735.99, 53,461.02 and 21,741.24

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Solution

The fourth proportional to 38,735.99, 53,461.02 and 21,741.24 is: 30,005.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,735.99 : 53,461.02 = 21,741.24 : x
  2. Step 2: Convert to fraction form
    38,735.99/53,461.02 = 21,741.24/x
  3. Step 3: Cross multiply
    38,735.99x = 53,461.02 × 21,741.24
  4. Step 4: Simplify right side
    38,735.99x = 1,162,308,866.46
  5. Step 5: Solve for x
    x = 1,162,308,866.46/38,735.99
  6. Step 6: Final answer
    x = 30,005.92

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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.