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Finding the Fourth Proportional to 5,703.04, 7,891.76 and 4,862.40

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Solution

The fourth proportional to 5,703.04, 7,891.76 and 4,862.40 is: 6,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,703.04 : 7,891.76 = 4,862.40 : x
  2. Step 2: Convert to fraction form
    5,703.04/7,891.76 = 4,862.40/x
  3. Step 3: Cross multiply
    5,703.04x = 7,891.76 × 4,862.40
  4. Step 4: Simplify right side
    5,703.04x = 38,372,893.82
  5. Step 5: Solve for x
    x = 38,372,893.82/5,703.04
  6. Step 6: Final answer
    x = 6,728.50

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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.