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Finding the Fourth Proportional to 65,861.01, 90,888.30 and 35,646.36

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Solution

The fourth proportional to 65,861.01, 90,888.30 and 35,646.36 is: 49,192.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,861.01 : 90,888.30 = 35,646.36 : x
  2. Step 2: Convert to fraction form
    65,861.01/90,888.30 = 35,646.36/x
  3. Step 3: Cross multiply
    65,861.01x = 90,888.30 × 35,646.36
  4. Step 4: Simplify right side
    65,861.01x = 3,239,837,061.59
  5. Step 5: Solve for x
    x = 3,239,837,061.59/65,861.01
  6. Step 6: Final answer
    x = 49,192.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.