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Finding the Fourth Proportional to 18,130.95, 25,023 and 10,173.12

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Solution

The fourth proportional to 18,130.95, 25,023 and 10,173.12 is: 14,040.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.95 : 25,023 = 10,173.12 : x
  2. Step 2: Convert to fraction form
    18,130.95/25,023 = 10,173.12/x
  3. Step 3: Cross multiply
    18,130.95x = 25,023 × 10,173.12
  4. Step 4: Simplify right side
    18,130.95x = 254,561,981.76
  5. Step 5: Solve for x
    x = 254,561,981.76/18,130.95
  6. Step 6: Final answer
    x = 14,040.19

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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.