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Finding the Fourth Proportional to 45,999.45, 64,530.45 and 45,999.45

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Solution

The fourth proportional to 45,999.45, 64,530.45 and 45,999.45 is: 64,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,999.45 : 64,530.45 = 45,999.45 : x
  2. Step 2: Convert to fraction form
    45,999.45/64,530.45 = 45,999.45/x
  3. Step 3: Cross multiply
    45,999.45x = 64,530.45 × 45,999.45
  4. Step 4: Simplify right side
    45,999.45x = 2,968,365,208.25
  5. Step 5: Solve for x
    x = 2,968,365,208.25/45,999.45
  6. Step 6: Final answer
    x = 64,530.45

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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.