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Finding the Fourth Proportional to 55,602.15, 83,402.92 and 13,482.20

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Solution

The fourth proportional to 55,602.15, 83,402.92 and 13,482.20 is: 20,223.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,602.15 : 83,402.92 = 13,482.20 : x
  2. Step 2: Convert to fraction form
    55,602.15/83,402.92 = 13,482.20/x
  3. Step 3: Cross multiply
    55,602.15x = 83,402.92 × 13,482.20
  4. Step 4: Simplify right side
    55,602.15x = 1,124,454,528.41
  5. Step 5: Solve for x
    x = 1,124,454,528.41/55,602.15
  6. Step 6: Final answer
    x = 20,223.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.