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Finding the Fourth Proportional to 7,465.80, 10,301.94 and 5,111.40

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Solution

The fourth proportional to 7,465.80, 10,301.94 and 5,111.40 is: 7,053.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,465.80 : 10,301.94 = 5,111.40 : x
  2. Step 2: Convert to fraction form
    7,465.80/10,301.94 = 5,111.40/x
  3. Step 3: Cross multiply
    7,465.80x = 10,301.94 × 5,111.40
  4. Step 4: Simplify right side
    7,465.80x = 52,657,336.12
  5. Step 5: Solve for x
    x = 52,657,336.12/7,465.80
  6. Step 6: Final answer
    x = 7,053.14

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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.