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Finding the Fourth Proportional to 40,331.52, 60,419.52 and 19,569.60

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Solution

The fourth proportional to 40,331.52, 60,419.52 and 19,569.60 is: 29,316.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,331.52 : 60,419.52 = 19,569.60 : x
  2. Step 2: Convert to fraction form
    40,331.52/60,419.52 = 19,569.60/x
  3. Step 3: Cross multiply
    40,331.52x = 60,419.52 × 19,569.60
  4. Step 4: Simplify right side
    40,331.52x = 1,182,385,838.59
  5. Step 5: Solve for x
    x = 1,182,385,838.59/40,331.52
  6. Step 6: Final answer
    x = 29,316.67

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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.