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Finding the Fourth Proportional to 30,955.44, 42,719.40 and 17,526.40

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Solution

The fourth proportional to 30,955.44, 42,719.40 and 17,526.40 is: 24,186.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.44 : 42,719.40 = 17,526.40 : x
  2. Step 2: Convert to fraction form
    30,955.44/42,719.40 = 17,526.40/x
  3. Step 3: Cross multiply
    30,955.44x = 42,719.40 × 17,526.40
  4. Step 4: Simplify right side
    30,955.44x = 748,717,292.16
  5. Step 5: Solve for x
    x = 748,717,292.16/30,955.44
  6. Step 6: Final answer
    x = 24,186.94

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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.