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Finding the Fourth Proportional to 2,359.64, 3,256.46 and 1,575

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Solution

The fourth proportional to 2,359.64, 3,256.46 and 1,575 is: 2,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.64 : 3,256.46 = 1,575 : x
  2. Step 2: Convert to fraction form
    2,359.64/3,256.46 = 1,575/x
  3. Step 3: Cross multiply
    2,359.64x = 3,256.46 × 1,575
  4. Step 4: Simplify right side
    2,359.64x = 5,128,924.50
  5. Step 5: Solve for x
    x = 5,128,924.50/2,359.64
  6. Step 6: Final answer
    x = 2,173.60

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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.