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Finding the Fourth Proportional to 66,935.72, 92,369.92 and 37,127.72

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Solution

The fourth proportional to 66,935.72, 92,369.92 and 37,127.72 is: 51,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,935.72 : 92,369.92 = 37,127.72 : x
  2. Step 2: Convert to fraction form
    66,935.72/92,369.92 = 37,127.72/x
  3. Step 3: Cross multiply
    66,935.72x = 92,369.92 × 37,127.72
  4. Step 4: Simplify right side
    66,935.72x = 3,429,484,526.18
  5. Step 5: Solve for x
    x = 3,429,484,526.18/66,935.72
  6. Step 6: Final answer
    x = 51,235.49

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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.