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Finding the Fourth Proportional to 2,368.64, 3,565.76 and 2,130.50

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Solution

The fourth proportional to 2,368.64, 3,565.76 and 2,130.50 is: 3,207.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.64 : 3,565.76 = 2,130.50 : x
  2. Step 2: Convert to fraction form
    2,368.64/3,565.76 = 2,130.50/x
  3. Step 3: Cross multiply
    2,368.64x = 3,565.76 × 2,130.50
  4. Step 4: Simplify right side
    2,368.64x = 7,596,851.68
  5. Step 5: Solve for x
    x = 7,596,851.68/2,368.64
  6. Step 6: Final answer
    x = 3,207.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.