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Finding the Fourth Proportional to 28,807.70, 43,211.55 and 27,058.10

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Solution

The fourth proportional to 28,807.70, 43,211.55 and 27,058.10 is: 40,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807.70 : 43,211.55 = 27,058.10 : x
  2. Step 2: Convert to fraction form
    28,807.70/43,211.55 = 27,058.10/x
  3. Step 3: Cross multiply
    28,807.70x = 43,211.55 × 27,058.10
  4. Step 4: Simplify right side
    28,807.70x = 1,169,222,441.06
  5. Step 5: Solve for x
    x = 1,169,222,441.06/28,807.70
  6. Step 6: Final answer
    x = 40,587.15

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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.