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Finding the Fourth Proportional to 10,373.87, 15,547.75 and 5,629.87

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Solution

The fourth proportional to 10,373.87, 15,547.75 and 5,629.87 is: 8,437.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,373.87 : 15,547.75 = 5,629.87 : x
  2. Step 2: Convert to fraction form
    10,373.87/15,547.75 = 5,629.87/x
  3. Step 3: Cross multiply
    10,373.87x = 15,547.75 × 5,629.87
  4. Step 4: Simplify right side
    10,373.87x = 87,531,816.65
  5. Step 5: Solve for x
    x = 87,531,816.65/10,373.87
  6. Step 6: Final answer
    x = 8,437.72

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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.