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Finding the Fourth Proportional to 25,488.96, 35,172.96 and 14,312.64

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Solution

The fourth proportional to 25,488.96, 35,172.96 and 14,312.64 is: 19,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,488.96 : 35,172.96 = 14,312.64 : x
  2. Step 2: Convert to fraction form
    25,488.96/35,172.96 = 14,312.64/x
  3. Step 3: Cross multiply
    25,488.96x = 35,172.96 × 14,312.64
  4. Step 4: Simplify right side
    25,488.96x = 503,417,914.21
  5. Step 5: Solve for x
    x = 503,417,914.21/25,488.96
  6. Step 6: Final answer
    x = 19,750.43

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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.