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Finding the Fourth Proportional to 53,478.76, 73,801.57 and 29,279.32

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Solution

The fourth proportional to 53,478.76, 73,801.57 and 29,279.32 is: 40,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,478.76 : 73,801.57 = 29,279.32 : x
  2. Step 2: Convert to fraction form
    53,478.76/73,801.57 = 29,279.32/x
  3. Step 3: Cross multiply
    53,478.76x = 73,801.57 × 29,279.32
  4. Step 4: Simplify right side
    53,478.76x = 2,160,859,784.53
  5. Step 5: Solve for x
    x = 2,160,859,784.53/53,478.76
  6. Step 6: Final answer
    x = 40,405.94

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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.