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Finding the Fourth Proportional to 15,140.13, 22,681.95 and 10,969.95

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Solution

The fourth proportional to 15,140.13, 22,681.95 and 10,969.95 is: 16,434.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.13 : 22,681.95 = 10,969.95 : x
  2. Step 2: Convert to fraction form
    15,140.13/22,681.95 = 10,969.95/x
  3. Step 3: Cross multiply
    15,140.13x = 22,681.95 × 10,969.95
  4. Step 4: Simplify right side
    15,140.13x = 248,819,857.40
  5. Step 5: Solve for x
    x = 248,819,857.40/15,140.13
  6. Step 6: Final answer
    x = 16,434.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.