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Finding the Fourth Proportional to 66,678.98, 92,019.47 and 36,462.51

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Solution

The fourth proportional to 66,678.98, 92,019.47 and 36,462.51 is: 50,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,678.98 : 92,019.47 = 36,462.51 : x
  2. Step 2: Convert to fraction form
    66,678.98/92,019.47 = 36,462.51/x
  3. Step 3: Cross multiply
    66,678.98x = 92,019.47 × 36,462.51
  4. Step 4: Simplify right side
    66,678.98x = 3,355,260,662.76
  5. Step 5: Solve for x
    x = 3,355,260,662.76/66,678.98
  6. Step 6: Final answer
    x = 50,319.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.