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Finding the Fourth Proportional to 63,646.80, 87,830.08 and 35,354.28

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Solution

The fourth proportional to 63,646.80, 87,830.08 and 35,354.28 is: 48,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,646.80 : 87,830.08 = 35,354.28 : x
  2. Step 2: Convert to fraction form
    63,646.80/87,830.08 = 35,354.28/x
  3. Step 3: Cross multiply
    63,646.80x = 87,830.08 × 35,354.28
  4. Step 4: Simplify right side
    63,646.80x = 3,105,169,240.74
  5. Step 5: Solve for x
    x = 3,105,169,240.74/63,646.80
  6. Step 6: Final answer
    x = 48,787.52

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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.