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Finding the Fourth Proportional to 7,248.80, 10,897.20 and 6,298.40

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Solution

The fourth proportional to 7,248.80, 10,897.20 and 6,298.40 is: 9,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.80 : 10,897.20 = 6,298.40 : x
  2. Step 2: Convert to fraction form
    7,248.80/10,897.20 = 6,298.40/x
  3. Step 3: Cross multiply
    7,248.80x = 10,897.20 × 6,298.40
  4. Step 4: Simplify right side
    7,248.80x = 68,634,924.48
  5. Step 5: Solve for x
    x = 68,634,924.48/7,248.80
  6. Step 6: Final answer
    x = 9,468.45

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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.