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Finding the Fourth Proportional to 7,019.17, 9,686.10 and 4,034.32

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Solution

The fourth proportional to 7,019.17, 9,686.10 and 4,034.32 is: 5,567.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.17 : 9,686.10 = 4,034.32 : x
  2. Step 2: Convert to fraction form
    7,019.17/9,686.10 = 4,034.32/x
  3. Step 3: Cross multiply
    7,019.17x = 9,686.10 × 4,034.32
  4. Step 4: Simplify right side
    7,019.17x = 39,076,826.95
  5. Step 5: Solve for x
    x = 39,076,826.95/7,019.17
  6. Step 6: Final answer
    x = 5,567.16

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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.