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Finding the Fourth Proportional to 71,316.86, 98,416.87 and 39,050.89

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Solution

The fourth proportional to 71,316.86, 98,416.87 and 39,050.89 is: 53,890.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.86 : 98,416.87 = 39,050.89 : x
  2. Step 2: Convert to fraction form
    71,316.86/98,416.87 = 39,050.89/x
  3. Step 3: Cross multiply
    71,316.86x = 98,416.87 × 39,050.89
  4. Step 4: Simplify right side
    71,316.86x = 3,843,266,020.84
  5. Step 5: Solve for x
    x = 3,843,266,020.84/71,316.86
  6. Step 6: Final answer
    x = 53,890.01

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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.