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Finding the Fourth Proportional to 25,330.40, 34,955.92 and 14,152.40

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Solution

The fourth proportional to 25,330.40, 34,955.92 and 14,152.40 is: 19,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,330.40 : 34,955.92 = 14,152.40 : x
  2. Step 2: Convert to fraction form
    25,330.40/34,955.92 = 14,152.40/x
  3. Step 3: Cross multiply
    25,330.40x = 34,955.92 × 14,152.40
  4. Step 4: Simplify right side
    25,330.40x = 494,710,162.21
  5. Step 5: Solve for x
    x = 494,710,162.21/25,330.40
  6. Step 6: Final answer
    x = 19,530.29

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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.