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Finding the Fourth Proportional to 43,612.80, 65,083.80 and 43,363.32

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Solution

The fourth proportional to 43,612.80, 65,083.80 and 43,363.32 is: 64,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,612.80 : 65,083.80 = 43,363.32 : x
  2. Step 2: Convert to fraction form
    43,612.80/65,083.80 = 43,363.32/x
  3. Step 3: Cross multiply
    43,612.80x = 65,083.80 × 43,363.32
  4. Step 4: Simplify right side
    43,612.80x = 2,822,249,646.22
  5. Step 5: Solve for x
    x = 2,822,249,646.22/43,612.80
  6. Step 6: Final answer
    x = 64,711.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.