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Finding the Fourth Proportional to 66,888.94, 92,283.82 and 38,187.94

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Solution

The fourth proportional to 66,888.94, 92,283.82 and 38,187.94 is: 52,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,888.94 : 92,283.82 = 38,187.94 : x
  2. Step 2: Convert to fraction form
    66,888.94/92,283.82 = 38,187.94/x
  3. Step 3: Cross multiply
    66,888.94x = 92,283.82 × 38,187.94
  4. Step 4: Simplify right side
    66,888.94x = 3,524,128,981.13
  5. Step 5: Solve for x
    x = 3,524,128,981.13/66,888.94
  6. Step 6: Final answer
    x = 52,686.27

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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.