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Finding the Fourth Proportional to 68,875.50, 95,040.59 and 38,653.89

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Solution

The fourth proportional to 68,875.50, 95,040.59 and 38,653.89 is: 53,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,875.50 : 95,040.59 = 38,653.89 : x
  2. Step 2: Convert to fraction form
    68,875.50/95,040.59 = 38,653.89/x
  3. Step 3: Cross multiply
    68,875.50x = 95,040.59 × 38,653.89
  4. Step 4: Simplify right side
    68,875.50x = 3,673,688,318.13
  5. Step 5: Solve for x
    x = 3,673,688,318.13/68,875.50
  6. Step 6: Final answer
    x = 53,338.10

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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.