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Finding the Fourth Proportional to 25,643.46, 35,387.46 and 14,465.46

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Solution

The fourth proportional to 25,643.46, 35,387.46 and 14,465.46 is: 19,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643.46 : 35,387.46 = 14,465.46 : x
  2. Step 2: Convert to fraction form
    25,643.46/35,387.46 = 14,465.46/x
  3. Step 3: Cross multiply
    25,643.46x = 35,387.46 × 14,465.46
  4. Step 4: Simplify right side
    25,643.46x = 511,895,887.13
  5. Step 5: Solve for x
    x = 511,895,887.13/25,643.46
  6. Step 6: Final answer
    x = 19,962.04

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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.