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Finding the Fourth Proportional to 55,783.15, 83,674.71 and 14,230.15

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Solution

The fourth proportional to 55,783.15, 83,674.71 and 14,230.15 is: 21,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,783.15 : 83,674.71 = 14,230.15 : x
  2. Step 2: Convert to fraction form
    55,783.15/83,674.71 = 14,230.15/x
  3. Step 3: Cross multiply
    55,783.15x = 83,674.71 × 14,230.15
  4. Step 4: Simplify right side
    55,783.15x = 1,190,703,674.51
  5. Step 5: Solve for x
    x = 1,190,703,674.51/55,783.15
  6. Step 6: Final answer
    x = 21,345.22

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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.