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Finding the Fourth Proportional to 60,117.80, 82,980.42 and 38,896.52

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Solution

The fourth proportional to 60,117.80, 82,980.42 and 38,896.52 is: 53,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,117.80 : 82,980.42 = 38,896.52 : x
  2. Step 2: Convert to fraction form
    60,117.80/82,980.42 = 38,896.52/x
  3. Step 3: Cross multiply
    60,117.80x = 82,980.42 × 38,896.52
  4. Step 4: Simplify right side
    60,117.80x = 3,227,649,566.14
  5. Step 5: Solve for x
    x = 3,227,649,566.14/60,117.80
  6. Step 6: Final answer
    x = 53,688.75

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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.