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Finding the Fourth Proportional to 60,830.93, 91,239.21 and 18,710.93

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Solution

The fourth proportional to 60,830.93, 91,239.21 and 18,710.93 is: 28,064.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,830.93 : 91,239.21 = 18,710.93 : x
  2. Step 2: Convert to fraction form
    60,830.93/91,239.21 = 18,710.93/x
  3. Step 3: Cross multiply
    60,830.93x = 91,239.21 × 18,710.93
  4. Step 4: Simplify right side
    60,830.93x = 1,707,170,699.66
  5. Step 5: Solve for x
    x = 1,707,170,699.66/60,830.93
  6. Step 6: Final answer
    x = 28,064.19

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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.