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Finding the Fourth Proportional to 66,856.81, 92,263.12 and 36,641.48

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Solution

The fourth proportional to 66,856.81, 92,263.12 and 36,641.48 is: 50,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856.81 : 92,263.12 = 36,641.48 : x
  2. Step 2: Convert to fraction form
    66,856.81/92,263.12 = 36,641.48/x
  3. Step 3: Cross multiply
    66,856.81x = 92,263.12 × 36,641.48
  4. Step 4: Simplify right side
    66,856.81x = 3,380,657,300.98
  5. Step 5: Solve for x
    x = 3,380,657,300.98/66,856.81
  6. Step 6: Final answer
    x = 50,565.64

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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.