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Finding the Fourth Proportional to 60,639.33, 90,971.19 and 25,578.84

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Solution

The fourth proportional to 60,639.33, 90,971.19 and 25,578.84 is: 38,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,639.33 : 90,971.19 = 25,578.84 : x
  2. Step 2: Convert to fraction form
    60,639.33/90,971.19 = 25,578.84/x
  3. Step 3: Cross multiply
    60,639.33x = 90,971.19 × 25,578.84
  4. Step 4: Simplify right side
    60,639.33x = 2,326,937,513.62
  5. Step 5: Solve for x
    x = 2,326,937,513.62/60,639.33
  6. Step 6: Final answer
    x = 38,373.40

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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.