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Finding the Fourth Proportional to 65,626.94, 90,533.65 and 42,955.94

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Solution

The fourth proportional to 65,626.94, 90,533.65 and 42,955.94 is: 59,258.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,626.94 : 90,533.65 = 42,955.94 : x
  2. Step 2: Convert to fraction form
    65,626.94/90,533.65 = 42,955.94/x
  3. Step 3: Cross multiply
    65,626.94x = 90,533.65 × 42,955.94
  4. Step 4: Simplify right side
    65,626.94x = 3,888,958,037.38
  5. Step 5: Solve for x
    x = 3,888,958,037.38/65,626.94
  6. Step 6: Final answer
    x = 59,258.56

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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.