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Finding the Fourth Proportional to 66,971.88, 92,368.44 and 59,323.32

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Solution

The fourth proportional to 66,971.88, 92,368.44 and 59,323.32 is: 81,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,971.88 : 92,368.44 = 59,323.32 : x
  2. Step 2: Convert to fraction form
    66,971.88/92,368.44 = 59,323.32/x
  3. Step 3: Cross multiply
    66,971.88x = 92,368.44 × 59,323.32
  4. Step 4: Simplify right side
    66,971.88x = 5,479,602,524.02
  5. Step 5: Solve for x
    x = 5,479,602,524.02/66,971.88
  6. Step 6: Final answer
    x = 81,819.45

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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.