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Finding the Fourth Proportional to 65,576.32, 90,482.88 and 37,271.68

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Solution

The fourth proportional to 65,576.32, 90,482.88 and 37,271.68 is: 51,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,576.32 : 90,482.88 = 37,271.68 : x
  2. Step 2: Convert to fraction form
    65,576.32/90,482.88 = 37,271.68/x
  3. Step 3: Cross multiply
    65,576.32x = 90,482.88 × 37,271.68
  4. Step 4: Simplify right side
    65,576.32x = 3,372,448,948.84
  5. Step 5: Solve for x
    x = 3,372,448,948.84/65,576.32
  6. Step 6: Final answer
    x = 51,427.85

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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.