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Finding the Fourth Proportional to 25,368.92, 34,980.46 and 18,975.02

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Solution

The fourth proportional to 25,368.92, 34,980.46 and 18,975.02 is: 26,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,368.92 : 34,980.46 = 18,975.02 : x
  2. Step 2: Convert to fraction form
    25,368.92/34,980.46 = 18,975.02/x
  3. Step 3: Cross multiply
    25,368.92x = 34,980.46 × 18,975.02
  4. Step 4: Simplify right side
    25,368.92x = 663,754,928.11
  5. Step 5: Solve for x
    x = 663,754,928.11/25,368.92
  6. Step 6: Final answer
    x = 26,164.10

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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.