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Finding the Fourth Proportional to 18,478.60, 25,501.06 and 10,095.10

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Solution

The fourth proportional to 18,478.60, 25,501.06 and 10,095.10 is: 13,931.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.60 : 25,501.06 = 10,095.10 : x
  2. Step 2: Convert to fraction form
    18,478.60/25,501.06 = 10,095.10/x
  3. Step 3: Cross multiply
    18,478.60x = 25,501.06 × 10,095.10
  4. Step 4: Simplify right side
    18,478.60x = 257,435,750.81
  5. Step 5: Solve for x
    x = 257,435,750.81/18,478.60
  6. Step 6: Final answer
    x = 13,931.56

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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.