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Finding the Fourth Proportional to 63,357.72, 87,432.98 and 34,285.45

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Solution

The fourth proportional to 63,357.72, 87,432.98 and 34,285.45 is: 47,313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,357.72 : 87,432.98 = 34,285.45 : x
  2. Step 2: Convert to fraction form
    63,357.72/87,432.98 = 34,285.45/x
  3. Step 3: Cross multiply
    63,357.72x = 87,432.98 × 34,285.45
  4. Step 4: Simplify right side
    63,357.72x = 2,997,678,931.27
  5. Step 5: Solve for x
    x = 2,997,678,931.27/63,357.72
  6. Step 6: Final answer
    x = 47,313.56

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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.