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Finding the Fourth Proportional to 17,287.77, 25,931.62 and 9,887.02

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Solution

The fourth proportional to 17,287.77, 25,931.62 and 9,887.02 is: 14,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,287.77 : 25,931.62 = 9,887.02 : x
  2. Step 2: Convert to fraction form
    17,287.77/25,931.62 = 9,887.02/x
  3. Step 3: Cross multiply
    17,287.77x = 25,931.62 × 9,887.02
  4. Step 4: Simplify right side
    17,287.77x = 256,386,445.57
  5. Step 5: Solve for x
    x = 256,386,445.57/17,287.77
  6. Step 6: Final answer
    x = 14,830.51

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1.5x scale

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.