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Finding the Fourth Proportional to 71,313.93, 98,412.84 and 39,482.73

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Solution

The fourth proportional to 71,313.93, 98,412.84 and 39,482.73 is: 54,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,313.93 : 98,412.84 = 39,482.73 : x
  2. Step 2: Convert to fraction form
    71,313.93/98,412.84 = 39,482.73/x
  3. Step 3: Cross multiply
    71,313.93x = 98,412.84 × 39,482.73
  4. Step 4: Simplify right side
    71,313.93x = 3,885,607,590.25
  5. Step 5: Solve for x
    x = 3,885,607,590.25/71,313.93
  6. Step 6: Final answer
    x = 54,485.96

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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.