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Finding the Fourth Proportional to 40,528.80, 56,609.10 and 40,528.80

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Solution

The fourth proportional to 40,528.80, 56,609.10 and 40,528.80 is: 56,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,528.80 : 56,609.10 = 40,528.80 : x
  2. Step 2: Convert to fraction form
    40,528.80/56,609.10 = 40,528.80/x
  3. Step 3: Cross multiply
    40,528.80x = 56,609.10 × 40,528.80
  4. Step 4: Simplify right side
    40,528.80x = 2,294,298,892.08
  5. Step 5: Solve for x
    x = 2,294,298,892.08/40,528.80
  6. Step 6: Final answer
    x = 56,609.10

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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.