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Finding the Fourth Proportional to 66,751.56, 92,117.04 and 38,462.64

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Solution

The fourth proportional to 66,751.56, 92,117.04 and 38,462.64 is: 53,078.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.56 : 92,117.04 = 38,462.64 : x
  2. Step 2: Convert to fraction form
    66,751.56/92,117.04 = 38,462.64/x
  3. Step 3: Cross multiply
    66,751.56x = 92,117.04 × 38,462.64
  4. Step 4: Simplify right side
    66,751.56x = 3,543,064,547.39
  5. Step 5: Solve for x
    x = 3,543,064,547.39/66,751.56
  6. Step 6: Final answer
    x = 53,078.38

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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.