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Finding the Fourth Proportional to 72,877.68, 100,571.76 and 41,043.60

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Solution

The fourth proportional to 72,877.68, 100,571.76 and 41,043.60 is: 56,640.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,877.68 : 100,571.76 = 41,043.60 : x
  2. Step 2: Convert to fraction form
    72,877.68/100,571.76 = 41,043.60/x
  3. Step 3: Cross multiply
    72,877.68x = 100,571.76 × 41,043.60
  4. Step 4: Simplify right side
    72,877.68x = 4,127,827,088.74
  5. Step 5: Solve for x
    x = 4,127,827,088.74/72,877.68
  6. Step 6: Final answer
    x = 56,640.48

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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.