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Finding the Fourth Proportional to 61,510.64, 84,331.01 and 60,389.60

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Solution

The fourth proportional to 61,510.64, 84,331.01 and 60,389.60 is: 82,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,510.64 : 84,331.01 = 60,389.60 : x
  2. Step 2: Convert to fraction form
    61,510.64/84,331.01 = 60,389.60/x
  3. Step 3: Cross multiply
    61,510.64x = 84,331.01 × 60,389.60
  4. Step 4: Simplify right side
    61,510.64x = 5,092,715,690.81
  5. Step 5: Solve for x
    x = 5,092,715,690.81/61,510.64
  6. Step 6: Final answer
    x = 82,794.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.