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Finding the Fourth Proportional to 71,980.35, 99,364.74 and 46,499.13

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Solution

The fourth proportional to 71,980.35, 99,364.74 and 46,499.13 is: 64,189.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,980.35 : 99,364.74 = 46,499.13 : x
  2. Step 2: Convert to fraction form
    71,980.35/99,364.74 = 46,499.13/x
  3. Step 3: Cross multiply
    71,980.35x = 99,364.74 × 46,499.13
  4. Step 4: Simplify right side
    71,980.35x = 4,620,373,962.68
  5. Step 5: Solve for x
    x = 4,620,373,962.68/71,980.35
  6. Step 6: Final answer
    x = 64,189.38

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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.