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Finding the Fourth Proportional to 1,752.17, 2,417.96 and 955.50

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Solution

The fourth proportional to 1,752.17, 2,417.96 and 955.50 is: 1,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.17 : 2,417.96 = 955.50 : x
  2. Step 2: Convert to fraction form
    1,752.17/2,417.96 = 955.50/x
  3. Step 3: Cross multiply
    1,752.17x = 2,417.96 × 955.50
  4. Step 4: Simplify right side
    1,752.17x = 2,310,358.21
  5. Step 5: Solve for x
    x = 2,310,358.21/1,752.17
  6. Step 6: Final answer
    x = 1,318.57

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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.