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Finding the Fourth Proportional to 66,878.96, 92,277.79 and 45,371.63

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Solution

The fourth proportional to 66,878.96, 92,277.79 and 45,371.63 is: 62,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878.96 : 92,277.79 = 45,371.63 : x
  2. Step 2: Convert to fraction form
    66,878.96/92,277.79 = 45,371.63/x
  3. Step 3: Cross multiply
    66,878.96x = 92,277.79 × 45,371.63
  4. Step 4: Simplify right side
    66,878.96x = 4,186,793,862.36
  5. Step 5: Solve for x
    x = 4,186,793,862.36/66,878.96
  6. Step 6: Final answer
    x = 62,602.56

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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.