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Finding the Fourth Proportional to 25,498.64, 35,187.81 and 14,320.64

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Solution

The fourth proportional to 25,498.64, 35,187.81 and 14,320.64 is: 19,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,498.64 : 35,187.81 = 14,320.64 : x
  2. Step 2: Convert to fraction form
    25,498.64/35,187.81 = 14,320.64/x
  3. Step 3: Cross multiply
    25,498.64x = 35,187.81 × 14,320.64
  4. Step 4: Simplify right side
    25,498.64x = 503,911,959.40
  5. Step 5: Solve for x
    x = 503,911,959.40/25,498.64
  6. Step 6: Final answer
    x = 19,762.31

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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.