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Finding the Fourth Proportional to 7,038.68, 9,713.61 and 4,055.13

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Solution

The fourth proportional to 7,038.68, 9,713.61 and 4,055.13 is: 5,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.68 : 9,713.61 = 4,055.13 : x
  2. Step 2: Convert to fraction form
    7,038.68/9,713.61 = 4,055.13/x
  3. Step 3: Cross multiply
    7,038.68x = 9,713.61 × 4,055.13
  4. Step 4: Simplify right side
    7,038.68x = 39,389,951.32
  5. Step 5: Solve for x
    x = 39,389,951.32/7,038.68
  6. Step 6: Final answer
    x = 5,596.22

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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.