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Finding the Fourth Proportional to 61,887.04, 85,398.91 and 36,394.32

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Solution

The fourth proportional to 61,887.04, 85,398.91 and 36,394.32 is: 50,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,887.04 : 85,398.91 = 36,394.32 : x
  2. Step 2: Convert to fraction form
    61,887.04/85,398.91 = 36,394.32/x
  3. Step 3: Cross multiply
    61,887.04x = 85,398.91 × 36,394.32
  4. Step 4: Simplify right side
    61,887.04x = 3,108,035,258.19
  5. Step 5: Solve for x
    x = 3,108,035,258.19/61,887.04
  6. Step 6: Final answer
    x = 50,221.10

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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.