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Finding the Fourth Proportional to 63,283.20, 87,358.72 and 37,798.40

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Solution

The fourth proportional to 63,283.20, 87,358.72 and 37,798.40 is: 52,178.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,283.20 : 87,358.72 = 37,798.40 : x
  2. Step 2: Convert to fraction form
    63,283.20/87,358.72 = 37,798.40/x
  3. Step 3: Cross multiply
    63,283.20x = 87,358.72 × 37,798.40
  4. Step 4: Simplify right side
    63,283.20x = 3,302,019,842.05
  5. Step 5: Solve for x
    x = 3,302,019,842.05/63,283.20
  6. Step 6: Final answer
    x = 52,178.46

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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.