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Finding the Fourth Proportional to 1,656.21, 2,483.88 and 875.16

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Solution

The fourth proportional to 1,656.21, 2,483.88 and 875.16 is: 1,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.21 : 2,483.88 = 875.16 : x
  2. Step 2: Convert to fraction form
    1,656.21/2,483.88 = 875.16/x
  3. Step 3: Cross multiply
    1,656.21x = 2,483.88 × 875.16
  4. Step 4: Simplify right side
    1,656.21x = 2,173,792.42
  5. Step 5: Solve for x
    x = 2,173,792.42/1,656.21
  6. Step 6: Final answer
    x = 1,312.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.