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Finding the Fourth Proportional to 77,510.64, 116,285.60 and 22,106.64

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Solution

The fourth proportional to 77,510.64, 116,285.60 and 22,106.64 is: 33,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,510.64 : 116,285.60 = 22,106.64 : x
  2. Step 2: Convert to fraction form
    77,510.64/116,285.60 = 22,106.64/x
  3. Step 3: Cross multiply
    77,510.64x = 116,285.60 × 22,106.64
  4. Step 4: Simplify right side
    77,510.64x = 2,570,683,896.38
  5. Step 5: Solve for x
    x = 2,570,683,896.38/77,510.64
  6. Step 6: Final answer
    x = 33,165.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.