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Finding the Fourth Proportional to 35,392.74, 53,097.28 and 12,019.16

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Solution

The fourth proportional to 35,392.74, 53,097.28 and 12,019.16 is: 18,031.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,392.74 : 53,097.28 = 12,019.16 : x
  2. Step 2: Convert to fraction form
    35,392.74/53,097.28 = 12,019.16/x
  3. Step 3: Cross multiply
    35,392.74x = 53,097.28 × 12,019.16
  4. Step 4: Simplify right side
    35,392.74x = 638,184,703.88
  5. Step 5: Solve for x
    x = 638,184,703.88/35,392.74
  6. Step 6: Final answer
    x = 18,031.51

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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.