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Finding the Fourth Proportional to 66,885.93, 100,319.65 and 36,955.46

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Solution

The fourth proportional to 66,885.93, 100,319.65 and 36,955.46 is: 55,428.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,885.93 : 100,319.65 = 36,955.46 : x
  2. Step 2: Convert to fraction form
    66,885.93/100,319.65 = 36,955.46/x
  3. Step 3: Cross multiply
    66,885.93x = 100,319.65 × 36,955.46
  4. Step 4: Simplify right side
    66,885.93x = 3,707,358,971.20
  5. Step 5: Solve for x
    x = 3,707,358,971.20/66,885.93
  6. Step 6: Final answer
    x = 55,428.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.