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Finding the Fourth Proportional to 60,411.41, 90,428.48 and 38,191.49

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Solution

The fourth proportional to 60,411.41, 90,428.48 and 38,191.49 is: 57,167.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,411.41 : 90,428.48 = 38,191.49 : x
  2. Step 2: Convert to fraction form
    60,411.41/90,428.48 = 38,191.49/x
  3. Step 3: Cross multiply
    60,411.41x = 90,428.48 × 38,191.49
  4. Step 4: Simplify right side
    60,411.41x = 3,453,598,389.64
  5. Step 5: Solve for x
    x = 3,453,598,389.64/60,411.41
  6. Step 6: Final answer
    x = 57,167.98

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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.