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Finding the Fourth Proportional to 61,224.48, 84,479.76 and 36,070.56

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Solution

The fourth proportional to 61,224.48, 84,479.76 and 36,070.56 is: 49,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,224.48 : 84,479.76 = 36,070.56 : x
  2. Step 2: Convert to fraction form
    61,224.48/84,479.76 = 36,070.56/x
  3. Step 3: Cross multiply
    61,224.48x = 84,479.76 × 36,070.56
  4. Step 4: Simplify right side
    61,224.48x = 3,047,232,251.87
  5. Step 5: Solve for x
    x = 3,047,232,251.87/61,224.48
  6. Step 6: Final answer
    x = 49,771.47

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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.