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Finding the Fourth Proportional to 55,358.40, 83,037.60 and 37,643.70

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Solution

The fourth proportional to 55,358.40, 83,037.60 and 37,643.70 is: 56,465.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.40 : 83,037.60 = 37,643.70 : x
  2. Step 2: Convert to fraction form
    55,358.40/83,037.60 = 37,643.70/x
  3. Step 3: Cross multiply
    55,358.40x = 83,037.60 × 37,643.70
  4. Step 4: Simplify right side
    55,358.40x = 3,125,842,503.12
  5. Step 5: Solve for x
    x = 3,125,842,503.12/55,358.40
  6. Step 6: Final answer
    x = 56,465.55

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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.