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Finding the Fourth Proportional to 65,048.68, 89,765.28 and 36,368.38

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Solution

The fourth proportional to 65,048.68, 89,765.28 and 36,368.38 is: 50,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,048.68 : 89,765.28 = 36,368.38 : x
  2. Step 2: Convert to fraction form
    65,048.68/89,765.28 = 36,368.38/x
  3. Step 3: Cross multiply
    65,048.68x = 89,765.28 × 36,368.38
  4. Step 4: Simplify right side
    65,048.68x = 3,264,617,813.85
  5. Step 5: Solve for x
    x = 3,264,617,813.85/65,048.68
  6. Step 6: Final answer
    x = 50,187.30

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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.