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Finding the Fourth Proportional to 66,547.63, 91,834.39 and 36,333.20

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Solution

The fourth proportional to 66,547.63, 91,834.39 and 36,333.20 is: 50,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,547.63 : 91,834.39 = 36,333.20 : x
  2. Step 2: Convert to fraction form
    66,547.63/91,834.39 = 36,333.20/x
  3. Step 3: Cross multiply
    66,547.63x = 91,834.39 × 36,333.20
  4. Step 4: Simplify right side
    66,547.63x = 3,336,637,710.26
  5. Step 5: Solve for x
    x = 3,336,637,710.26/66,547.63
  6. Step 6: Final answer
    x = 50,139.09

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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.