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Finding the Fourth Proportional to 18,746.40, 25,870.03 and 10,248.56

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Solution

The fourth proportional to 18,746.40, 25,870.03 and 10,248.56 is: 14,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.40 : 25,870.03 = 10,248.56 : x
  2. Step 2: Convert to fraction form
    18,746.40/25,870.03 = 10,248.56/x
  3. Step 3: Cross multiply
    18,746.40x = 25,870.03 × 10,248.56
  4. Step 4: Simplify right side
    18,746.40x = 265,130,399.69
  5. Step 5: Solve for x
    x = 265,130,399.69/18,746.40
  6. Step 6: Final answer
    x = 14,143.00

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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.