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Finding the Fourth Proportional to 61,189.86, 91,784.79 and 19,073.34

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Solution

The fourth proportional to 61,189.86, 91,784.79 and 19,073.34 is: 28,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,189.86 : 91,784.79 = 19,073.34 : x
  2. Step 2: Convert to fraction form
    61,189.86/91,784.79 = 19,073.34/x
  3. Step 3: Cross multiply
    61,189.86x = 91,784.79 × 19,073.34
  4. Step 4: Simplify right side
    61,189.86x = 1,750,642,506.50
  5. Step 5: Solve for x
    x = 1,750,642,506.50/61,189.86
  6. Step 6: Final answer
    x = 28,610.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.