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Finding the Fourth Proportional to 63,643.86, 87,830.73 and 35,352.18

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Solution

The fourth proportional to 63,643.86, 87,830.73 and 35,352.18 is: 48,787.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,643.86 : 87,830.73 = 35,352.18 : x
  2. Step 2: Convert to fraction form
    63,643.86/87,830.73 = 35,352.18/x
  3. Step 3: Cross multiply
    63,643.86x = 87,830.73 × 35,352.18
  4. Step 4: Simplify right side
    63,643.86x = 3,105,007,776.49
  5. Step 5: Solve for x
    x = 3,105,007,776.49/63,643.86
  6. Step 6: Final answer
    x = 48,787.23

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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.