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Finding the Fourth Proportional to 66,214.08, 91,373.76 and 37,918.08

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Solution

The fourth proportional to 66,214.08, 91,373.76 and 37,918.08 is: 52,325.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,214.08 : 91,373.76 = 37,918.08 : x
  2. Step 2: Convert to fraction form
    66,214.08/91,373.76 = 37,918.08/x
  3. Step 3: Cross multiply
    66,214.08x = 91,373.76 × 37,918.08
  4. Step 4: Simplify right side
    66,214.08x = 3,464,717,541.58
  5. Step 5: Solve for x
    x = 3,464,717,541.58/66,214.08
  6. Step 6: Final answer
    x = 52,325.99

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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.