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Finding the Fourth Proportional to 38,314.40, 57,437.40 and 14,935.40

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Solution

The fourth proportional to 38,314.40, 57,437.40 and 14,935.40 is: 22,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,314.40 : 57,437.40 = 14,935.40 : x
  2. Step 2: Convert to fraction form
    38,314.40/57,437.40 = 14,935.40/x
  3. Step 3: Cross multiply
    38,314.40x = 57,437.40 × 14,935.40
  4. Step 4: Simplify right side
    38,314.40x = 857,850,543.96
  5. Step 5: Solve for x
    x = 857,850,543.96/38,314.40
  6. Step 6: Final answer
    x = 22,389.77

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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.