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Finding the Fourth Proportional to 66,716.42, 92,070.95 and 38,040.30

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Solution

The fourth proportional to 66,716.42, 92,070.95 and 38,040.30 is: 52,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,716.42 : 92,070.95 = 38,040.30 : x
  2. Step 2: Convert to fraction form
    66,716.42/92,070.95 = 38,040.30/x
  3. Step 3: Cross multiply
    66,716.42x = 92,070.95 × 38,040.30
  4. Step 4: Simplify right side
    66,716.42x = 3,502,406,369.08
  5. Step 5: Solve for x
    x = 3,502,406,369.08/66,716.42
  6. Step 6: Final answer
    x = 52,496.92

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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.