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Finding the Fourth Proportional to 10,019.76, 15,031.01 and 4,175

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Solution

The fourth proportional to 10,019.76, 15,031.01 and 4,175 is: 6,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,019.76 : 15,031.01 = 4,175 : x
  2. Step 2: Convert to fraction form
    10,019.76/15,031.01 = 4,175/x
  3. Step 3: Cross multiply
    10,019.76x = 15,031.01 × 4,175
  4. Step 4: Simplify right side
    10,019.76x = 62,754,445.88
  5. Step 5: Solve for x
    x = 62,754,445.88/10,019.76
  6. Step 6: Final answer
    x = 6,263.07

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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.