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Finding the Fourth Proportional to 61,430.48, 84,773.12 and 35,954.40

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Solution

The fourth proportional to 61,430.48, 84,773.12 and 35,954.40 is: 49,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,430.48 : 84,773.12 = 35,954.40 : x
  2. Step 2: Convert to fraction form
    61,430.48/84,773.12 = 35,954.40/x
  3. Step 3: Cross multiply
    61,430.48x = 84,773.12 × 35,954.40
  4. Step 4: Simplify right side
    61,430.48x = 3,047,966,665.73
  5. Step 5: Solve for x
    x = 3,047,966,665.73/61,430.48
  6. Step 6: Final answer
    x = 49,616.52

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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.