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Finding the Fourth Proportional to 14,697.19, 20,272.40 and 9,398.71

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Solution

The fourth proportional to 14,697.19, 20,272.40 and 9,398.71 is: 12,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,697.19 : 20,272.40 = 9,398.71 : x
  2. Step 2: Convert to fraction form
    14,697.19/20,272.40 = 9,398.71/x
  3. Step 3: Cross multiply
    14,697.19x = 20,272.40 × 9,398.71
  4. Step 4: Simplify right side
    14,697.19x = 190,534,307.24
  5. Step 5: Solve for x
    x = 190,534,307.24/14,697.19
  6. Step 6: Final answer
    x = 12,964.00

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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.