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Finding the Fourth Proportional to 38,346.40, 57,485.40 and 14,967.40

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Solution

The fourth proportional to 38,346.40, 57,485.40 and 14,967.40 is: 22,437.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,346.40 : 57,485.40 = 14,967.40 : x
  2. Step 2: Convert to fraction form
    38,346.40/57,485.40 = 14,967.40/x
  3. Step 3: Cross multiply
    38,346.40x = 57,485.40 × 14,967.40
  4. Step 4: Simplify right side
    38,346.40x = 860,406,975.96
  5. Step 5: Solve for x
    x = 860,406,975.96/38,346.40
  6. Step 6: Final answer
    x = 22,437.75

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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.