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Finding the Fourth Proportional to 63,530.40, 87,665.76 and 35,235.48

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Solution

The fourth proportional to 63,530.40, 87,665.76 and 35,235.48 is: 48,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,530.40 : 87,665.76 = 35,235.48 : x
  2. Step 2: Convert to fraction form
    63,530.40/87,665.76 = 35,235.48/x
  3. Step 3: Cross multiply
    63,530.40x = 87,665.76 × 35,235.48
  4. Step 4: Simplify right side
    63,530.40x = 3,088,945,133.16
  5. Step 5: Solve for x
    x = 3,088,945,133.16/63,530.40
  6. Step 6: Final answer
    x = 48,621.53

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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.