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Finding the Fourth Proportional to 56,528.88, 77,987.64 and 33,868.82

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Solution

The fourth proportional to 56,528.88, 77,987.64 and 33,868.82 is: 46,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,528.88 : 77,987.64 = 33,868.82 : x
  2. Step 2: Convert to fraction form
    56,528.88/77,987.64 = 33,868.82/x
  3. Step 3: Cross multiply
    56,528.88x = 77,987.64 × 33,868.82
  4. Step 4: Simplify right side
    56,528.88x = 2,641,349,341.38
  5. Step 5: Solve for x
    x = 2,641,349,341.38/56,528.88
  6. Step 6: Final answer
    x = 46,725.66

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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.