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Finding the Fourth Proportional to 28,433.49, 42,641.00 and 9,453.02

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Solution

The fourth proportional to 28,433.49, 42,641.00 and 9,453.02 is: 14,176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.49 : 42,641.00 = 9,453.02 : x
  2. Step 2: Convert to fraction form
    28,433.49/42,641.00 = 9,453.02/x
  3. Step 3: Cross multiply
    28,433.49x = 42,641.00 × 9,453.02
  4. Step 4: Simplify right side
    28,433.49x = 403,085,965.35
  5. Step 5: Solve for x
    x = 403,085,965.35/28,433.49
  6. Step 6: Final answer
    x = 14,176.45

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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.