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Finding the Fourth Proportional to 66,899.13, 92,320.74 and 36,684.93

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Solution

The fourth proportional to 66,899.13, 92,320.74 and 36,684.93 is: 50,625.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,899.13 : 92,320.74 = 36,684.93 : x
  2. Step 2: Convert to fraction form
    66,899.13/92,320.74 = 36,684.93/x
  3. Step 3: Cross multiply
    66,899.13x = 92,320.74 × 36,684.93
  4. Step 4: Simplify right side
    66,899.13x = 3,386,779,884.45
  5. Step 5: Solve for x
    x = 3,386,779,884.45/66,899.13
  6. Step 6: Final answer
    x = 50,625.17

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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.