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Finding the Fourth Proportional to 55,807.70, 83,711.55 and 37,112.90

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Solution

The fourth proportional to 55,807.70, 83,711.55 and 37,112.90 is: 55,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,807.70 : 83,711.55 = 37,112.90 : x
  2. Step 2: Convert to fraction form
    55,807.70/83,711.55 = 37,112.90/x
  3. Step 3: Cross multiply
    55,807.70x = 83,711.55 × 37,112.90
  4. Step 4: Simplify right side
    55,807.70x = 3,106,778,384.00
  5. Step 5: Solve for x
    x = 3,106,778,384.00/55,807.70
  6. Step 6: Final answer
    x = 55,669.35

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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.