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Finding the Fourth Proportional to 13,885.80, 19,162.88 and 7,598.16

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Solution

The fourth proportional to 13,885.80, 19,162.88 and 7,598.16 is: 10,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.80 : 19,162.88 = 7,598.16 : x
  2. Step 2: Convert to fraction form
    13,885.80/19,162.88 = 7,598.16/x
  3. Step 3: Cross multiply
    13,885.80x = 19,162.88 × 7,598.16
  4. Step 4: Simplify right side
    13,885.80x = 145,602,628.30
  5. Step 5: Solve for x
    x = 145,602,628.30/13,885.80
  6. Step 6: Final answer
    x = 10,485.72

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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.