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Finding the Fourth Proportional to 84,646.16, 126,994.08 and 37,888.64

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Solution

The fourth proportional to 84,646.16, 126,994.08 and 37,888.64 is: 56,844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,646.16 : 126,994.08 = 37,888.64 : x
  2. Step 2: Convert to fraction form
    84,646.16/126,994.08 = 37,888.64/x
  3. Step 3: Cross multiply
    84,646.16x = 126,994.08 × 37,888.64
  4. Step 4: Simplify right side
    84,646.16x = 4,811,632,979.25
  5. Step 5: Solve for x
    x = 4,811,632,979.25/84,646.16
  6. Step 6: Final answer
    x = 56,844.08

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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.