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Finding the Fourth Proportional to 54,668.40, 75,407.40 and 34,489.68

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Solution

The fourth proportional to 54,668.40, 75,407.40 and 34,489.68 is: 47,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,668.40 : 75,407.40 = 34,489.68 : x
  2. Step 2: Convert to fraction form
    54,668.40/75,407.40 = 34,489.68/x
  3. Step 3: Cross multiply
    54,668.40x = 75,407.40 × 34,489.68
  4. Step 4: Simplify right side
    54,668.40x = 2,600,777,095.63
  5. Step 5: Solve for x
    x = 2,600,777,095.63/54,668.40
  6. Step 6: Final answer
    x = 47,573.68

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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.