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Finding the Fourth Proportional to 66,298.88, 91,492.45 and 36,084.42

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Solution

The fourth proportional to 66,298.88, 91,492.45 and 36,084.42 is: 49,796.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.88 : 91,492.45 = 36,084.42 : x
  2. Step 2: Convert to fraction form
    66,298.88/91,492.45 = 36,084.42/x
  3. Step 3: Cross multiply
    66,298.88x = 91,492.45 × 36,084.42
  4. Step 4: Simplify right side
    66,298.88x = 3,301,452,041.96
  5. Step 5: Solve for x
    x = 3,301,452,041.96/66,298.88
  6. Step 6: Final answer
    x = 49,796.50

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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.