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Finding the Fourth Proportional to 43,547.44, 65,319.72 and 18,923.44

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Solution

The fourth proportional to 43,547.44, 65,319.72 and 18,923.44 is: 28,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,547.44 : 65,319.72 = 18,923.44 : x
  2. Step 2: Convert to fraction form
    43,547.44/65,319.72 = 18,923.44/x
  3. Step 3: Cross multiply
    43,547.44x = 65,319.72 × 18,923.44
  4. Step 4: Simplify right side
    43,547.44x = 1,236,073,802.24
  5. Step 5: Solve for x
    x = 1,236,073,802.24/43,547.44
  6. Step 6: Final answer
    x = 28,384.53

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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.