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Finding the Fourth Proportional to 64,502.80, 86,802.30 and 64,502.80

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Solution

The fourth proportional to 64,502.80, 86,802.30 and 64,502.80 is: 86,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,502.80 : 86,802.30 = 64,502.80 : x
  2. Step 2: Convert to fraction form
    64,502.80/86,802.30 = 64,502.80/x
  3. Step 3: Cross multiply
    64,502.80x = 86,802.30 × 64,502.80
  4. Step 4: Simplify right side
    64,502.80x = 5,598,991,396.44
  5. Step 5: Solve for x
    x = 5,598,991,396.44/64,502.80
  6. Step 6: Final answer
    x = 86,802.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.