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Finding the Fourth Proportional to 55,886.88, 77,119.32 and 32,913.06

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Solution

The fourth proportional to 55,886.88, 77,119.32 and 32,913.06 is: 45,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,886.88 : 77,119.32 = 32,913.06 : x
  2. Step 2: Convert to fraction form
    55,886.88/77,119.32 = 32,913.06/x
  3. Step 3: Cross multiply
    55,886.88x = 77,119.32 × 32,913.06
  4. Step 4: Simplify right side
    55,886.88x = 2,538,232,806.32
  5. Step 5: Solve for x
    x = 2,538,232,806.32/55,886.88
  6. Step 6: Final answer
    x = 45,417.33

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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.