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Finding the Fourth Proportional to 14,038.95, 19,373.76 and 7,751.37

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Solution

The fourth proportional to 14,038.95, 19,373.76 and 7,751.37 is: 10,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.95 : 19,373.76 = 7,751.37 : x
  2. Step 2: Convert to fraction form
    14,038.95/19,373.76 = 7,751.37/x
  3. Step 3: Cross multiply
    14,038.95x = 19,373.76 × 7,751.37
  4. Step 4: Simplify right side
    14,038.95x = 150,173,182.05
  5. Step 5: Solve for x
    x = 150,173,182.05/14,038.95
  6. Step 6: Final answer
    x = 10,696.90

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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.