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Finding the Fourth Proportional to 61,069.99, 91,600.59 and 18,948.99

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Solution

The fourth proportional to 61,069.99, 91,600.59 and 18,948.99 is: 28,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,069.99 : 91,600.59 = 18,948.99 : x
  2. Step 2: Convert to fraction form
    61,069.99/91,600.59 = 18,948.99/x
  3. Step 3: Cross multiply
    61,069.99x = 91,600.59 × 18,948.99
  4. Step 4: Simplify right side
    61,069.99x = 1,735,738,663.90
  5. Step 5: Solve for x
    x = 1,735,738,663.90/61,069.99
  6. Step 6: Final answer
    x = 28,422.12

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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.