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Finding the Fourth Proportional to 66,904.98, 92,325.34 and 38,218.98

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Solution

The fourth proportional to 66,904.98, 92,325.34 and 38,218.98 is: 52,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,904.98 : 92,325.34 = 38,218.98 : x
  2. Step 2: Convert to fraction form
    66,904.98/92,325.34 = 38,218.98/x
  3. Step 3: Cross multiply
    66,904.98x = 92,325.34 × 38,218.98
  4. Step 4: Simplify right side
    66,904.98x = 3,528,580,322.95
  5. Step 5: Solve for x
    x = 3,528,580,322.95/66,904.98
  6. Step 6: Final answer
    x = 52,740.17

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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.