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Finding the Fourth Proportional to 1,733.57, 2,392.30 and 947.61

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Solution

The fourth proportional to 1,733.57, 2,392.30 and 947.61 is: 1,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,733.57 : 2,392.30 = 947.61 : x
  2. Step 2: Convert to fraction form
    1,733.57/2,392.30 = 947.61/x
  3. Step 3: Cross multiply
    1,733.57x = 2,392.30 × 947.61
  4. Step 4: Simplify right side
    1,733.57x = 2,266,967.40
  5. Step 5: Solve for x
    x = 2,266,967.40/1,733.57
  6. Step 6: Final answer
    x = 1,307.69

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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.