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Finding the Fourth Proportional to 38,673.76, 53,387.76 and 29,117.44

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Solution

The fourth proportional to 38,673.76, 53,387.76 and 29,117.44 is: 40,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,673.76 : 53,387.76 = 29,117.44 : x
  2. Step 2: Convert to fraction form
    38,673.76/53,387.76 = 29,117.44/x
  3. Step 3: Cross multiply
    38,673.76x = 53,387.76 × 29,117.44
  4. Step 4: Simplify right side
    38,673.76x = 1,554,514,898.53
  5. Step 5: Solve for x
    x = 1,554,514,898.53/38,673.76
  6. Step 6: Final answer
    x = 40,195.60

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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.