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Finding the Fourth Proportional to 61,980.16, 85,521.44 and 36,484.48

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Solution

The fourth proportional to 61,980.16, 85,521.44 and 36,484.48 is: 50,342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,980.16 : 85,521.44 = 36,484.48 : x
  2. Step 2: Convert to fraction form
    61,980.16/85,521.44 = 36,484.48/x
  3. Step 3: Cross multiply
    61,980.16x = 85,521.44 × 36,484.48
  4. Step 4: Simplify right side
    61,980.16x = 3,120,205,267.25
  5. Step 5: Solve for x
    x = 3,120,205,267.25/61,980.16
  6. Step 6: Final answer
    x = 50,342.00

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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.