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Finding the Fourth Proportional to 61,921.68, 85,457.24 and 35,068.92

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Solution

The fourth proportional to 61,921.68, 85,457.24 and 35,068.92 is: 48,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.68 : 85,457.24 = 35,068.92 : x
  2. Step 2: Convert to fraction form
    61,921.68/85,457.24 = 35,068.92/x
  3. Step 3: Cross multiply
    61,921.68x = 85,457.24 × 35,068.92
  4. Step 4: Simplify right side
    61,921.68x = 2,996,893,112.98
  5. Step 5: Solve for x
    x = 2,996,893,112.98/61,921.68
  6. Step 6: Final answer
    x = 48,398.12

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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.