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Finding the Fourth Proportional to 61,985.40, 85,540.46 and 33,691.07

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Solution

The fourth proportional to 61,985.40, 85,540.46 and 33,691.07 is: 46,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,985.40 : 85,540.46 = 33,691.07 : x
  2. Step 2: Convert to fraction form
    61,985.40/85,540.46 = 33,691.07/x
  3. Step 3: Cross multiply
    61,985.40x = 85,540.46 × 33,691.07
  4. Step 4: Simplify right side
    61,985.40x = 2,881,949,029.53
  5. Step 5: Solve for x
    x = 2,881,949,029.53/61,985.40
  6. Step 6: Final answer
    x = 46,494.00

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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.