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Finding the Fourth Proportional to 45,727.90, 64,062.80 and 45,727.90

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Solution

The fourth proportional to 45,727.90, 64,062.80 and 45,727.90 is: 64,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,727.90 : 64,062.80 = 45,727.90 : x
  2. Step 2: Convert to fraction form
    45,727.90/64,062.80 = 45,727.90/x
  3. Step 3: Cross multiply
    45,727.90x = 64,062.80 × 45,727.90
  4. Step 4: Simplify right side
    45,727.90x = 2,929,457,312.12
  5. Step 5: Solve for x
    x = 2,929,457,312.12/45,727.90
  6. Step 6: Final answer
    x = 64,062.80

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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.