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Finding the Fourth Proportional to 10,001.65, 15,011.89 and 5,074.82

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Solution

The fourth proportional to 10,001.65, 15,011.89 and 5,074.82 is: 7,617.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.65 : 15,011.89 = 5,074.82 : x
  2. Step 2: Convert to fraction form
    10,001.65/15,011.89 = 5,074.82/x
  3. Step 3: Cross multiply
    10,001.65x = 15,011.89 × 5,074.82
  4. Step 4: Simplify right side
    10,001.65x = 76,182,675.06
  5. Step 5: Solve for x
    x = 76,182,675.06/10,001.65
  6. Step 6: Final answer
    x = 7,617.01

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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.