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Finding the Fourth Proportional to 61,157.50, 91,749.42 and 19,036.69

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Solution

The fourth proportional to 61,157.50, 91,749.42 and 19,036.69 is: 28,559.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,157.50 : 91,749.42 = 19,036.69 : x
  2. Step 2: Convert to fraction form
    61,157.50/91,749.42 = 19,036.69/x
  3. Step 3: Cross multiply
    61,157.50x = 91,749.42 × 19,036.69
  4. Step 4: Simplify right side
    61,157.50x = 1,746,605,266.22
  5. Step 5: Solve for x
    x = 1,746,605,266.22/61,157.50
  6. Step 6: Final answer
    x = 28,559.13

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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.