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Finding the Fourth Proportional to 49,810.60, 69,909.80 and 49,810.60

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Solution

The fourth proportional to 49,810.60, 69,909.80 and 49,810.60 is: 69,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,810.60 : 69,909.80 = 49,810.60 : x
  2. Step 2: Convert to fraction form
    49,810.60/69,909.80 = 49,810.60/x
  3. Step 3: Cross multiply
    49,810.60x = 69,909.80 × 49,810.60
  4. Step 4: Simplify right side
    49,810.60x = 3,482,249,083.88
  5. Step 5: Solve for x
    x = 3,482,249,083.88/49,810.60
  6. Step 6: Final answer
    x = 69,909.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.