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Finding the Fourth Proportional to 18,278.51, 25,224.45 and 9,895.01

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Solution

The fourth proportional to 18,278.51, 25,224.45 and 9,895.01 is: 13,655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.51 : 25,224.45 = 9,895.01 : x
  2. Step 2: Convert to fraction form
    18,278.51/25,224.45 = 9,895.01/x
  3. Step 3: Cross multiply
    18,278.51x = 25,224.45 × 9,895.01
  4. Step 4: Simplify right side
    18,278.51x = 249,596,184.99
  5. Step 5: Solve for x
    x = 249,596,184.99/18,278.51
  6. Step 6: Final answer
    x = 13,655.17

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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.