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Finding the Fourth Proportional to 60,486.80, 84,769 and 60,486.80

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Solution

The fourth proportional to 60,486.80, 84,769 and 60,486.80 is: 84,769

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,486.80 : 84,769 = 60,486.80 : x
  2. Step 2: Convert to fraction form
    60,486.80/84,769 = 60,486.80/x
  3. Step 3: Cross multiply
    60,486.80x = 84,769 × 60,486.80
  4. Step 4: Simplify right side
    60,486.80x = 5,127,405,549.20
  5. Step 5: Solve for x
    x = 5,127,405,549.20/60,486.80
  6. Step 6: Final answer
    x = 84,769

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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.