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Finding the Fourth Proportional to 43,417.86, 64,736.62 and 39,710.84

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Solution

The fourth proportional to 43,417.86, 64,736.62 and 39,710.84 is: 59,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,417.86 : 64,736.62 = 39,710.84 : x
  2. Step 2: Convert to fraction form
    43,417.86/64,736.62 = 39,710.84/x
  3. Step 3: Cross multiply
    43,417.86x = 64,736.62 × 39,710.84
  4. Step 4: Simplify right side
    43,417.86x = 2,570,745,558.96
  5. Step 5: Solve for x
    x = 2,570,745,558.96/43,417.86
  6. Step 6: Final answer
    x = 59,209.40

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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.