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Finding the Fourth Proportional to 66,681.84, 92,017.56 and 36,868.08

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Solution

The fourth proportional to 66,681.84, 92,017.56 and 36,868.08 is: 50,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,681.84 : 92,017.56 = 36,868.08 : x
  2. Step 2: Convert to fraction form
    66,681.84/92,017.56 = 36,868.08/x
  3. Step 3: Cross multiply
    66,681.84x = 92,017.56 × 36,868.08
  4. Step 4: Simplify right side
    66,681.84x = 3,392,510,763.48
  5. Step 5: Solve for x
    x = 3,392,510,763.48/66,681.84
  6. Step 6: Final answer
    x = 50,876.08

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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.