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Finding the Fourth Proportional to 1,806.56, 2,495.08 and 1,782.32

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Solution

The fourth proportional to 1,806.56, 2,495.08 and 1,782.32 is: 2,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.56 : 2,495.08 = 1,782.32 : x
  2. Step 2: Convert to fraction form
    1,806.56/2,495.08 = 1,782.32/x
  3. Step 3: Cross multiply
    1,806.56x = 2,495.08 × 1,782.32
  4. Step 4: Simplify right side
    1,806.56x = 4,447,030.99
  5. Step 5: Solve for x
    x = 4,447,030.99/1,806.56
  6. Step 6: Final answer
    x = 2,461.60

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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.