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Finding the Fourth Proportional to 61,141.44, 84,390.20 and 37,281.28

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Solution

The fourth proportional to 61,141.44, 84,390.20 and 37,281.28 is: 51,457.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,141.44 : 84,390.20 = 37,281.28 : x
  2. Step 2: Convert to fraction form
    61,141.44/84,390.20 = 37,281.28/x
  3. Step 3: Cross multiply
    61,141.44x = 84,390.20 × 37,281.28
  4. Step 4: Simplify right side
    61,141.44x = 3,146,174,675.46
  5. Step 5: Solve for x
    x = 3,146,174,675.46/61,141.44
  6. Step 6: Final answer
    x = 51,457.32

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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.